平方千米有多少平方米

平方千米是什么意思？

平方千米表示边长为一千米的正方形的面积。平方米表示边长为一米的正方形的面积。因为1千米=1000米。所以：一平方米=1m*1m=1(m^2) 一平方千米=1000m*1000m=1000000(m^2)由上可知，平方千米和平方米的进率是1000000。

正确回答如下：边长为1千米的正方形，它的面积就是1平方千米。因为正方形的面积＝边长×边长所以这个正方形面积＝1×1＝1平方千米希望能帮助到你，请采纳谢谢！

1平方千米=100公顷1公顷=10000平方米平方千米，是我们用来形容某个城市某个省份或者国家占地面积的一个面积单位，它是针对边长为一千米的一个面积描述，即为一千米的平方, 通常平方千米能够非常直观地描述出一座城市、一个省份甚至一个国家的二维空间大小，同平方米一样,它是国家上通用的国际标准的面积单位。1平方千米是边长一千米的一个正方形的面积描述，它的算法就是将一个二维空间下的图形边长换算成千米为单位的基础上在进行相乘之后, 就能够得到平方千米的一个面积单位，平方千米可以说是目前为止最大的面积单位, 一般用来形容城市、省份和国家的占地面积，此外,它也会用来形容地球上的地表面积。除去平方千米外，我们还有很多关于面积的描述单位，比如国内非常常用的亩、国外用的英亩，以及公顷、平方厘米和平方米等等。

亩是我国的市制地积单位。 1亩≈666.7平方米。

1平方千米就是1平方公里，也就是1000米×1000米=1000000平方米。一个正规足球场场地大小为长105米、宽68米，大约也就是7140平方米。因此1平方公里大约是140个足球场的面积。平方千米是面积的公制单位其定义是“边长为1千米的正方形的面积”，也是计量土地的单位，符号为km。面积分析面积概念是贯穿整个单元的核心内容，是学习其他相关知识内容的重要基础。为了让学生真正的理解面积的含义，注重面积认识的直观性和层次性。对面积的直观感知包括认识“面”，然后是“面”的大小。教材从学生身边熟悉的事物，通过学生看一看，摸一摸的基础上，对认识物体的“面”及“面”的大小积累实践经验，进而深刻理解面积的含义。注重对面积单位的全面性。学生常误认为只有向上摆放的“面”才有面积，所有在教材中设计了“做一做”。让学生全面认识面积的概念和本质。强化概念的比较辨析。周长是对一维空间的度量，面积是对二维空间的度量。周长和面积大多共同承载于一个图形之中，造成学生认识混淆。教材注重采用多种对比的方式，帮助同学加以区别。

一平方千米等于1000000平方米。不一样的面积单位

162亿㎡等于多少k㎡？

一千万平方千米有多大如下平方千米是面积的公制单位，其定义是边长为1千米的正方形的面积，也是计量土地的单位。1平方千米等于100公顷等于1000000平方米等于1499亩正规足球场场地大小是长105米、宽68米，面积是7140平方米 。1平方千米大约是140个足球场的面积。一平方千米的大小等于二点七个天安门广场的大小。

中国大多数地区都会使用平方千米这个面积单位，主要用于比较大的面积，如国土面积、城市面积、海洋面积、草原面积、森林面积、机场面积等。平方千米是比较大的面积单位，生活中比较常见的面积单位还有平方米，比如一个房间的面积是20平方米，一个桌子的面积是1平方米，1平方千米=1000 000平方米。面积单位的换算因为1平方米=1米x1米。所以1平方千米=1千米x1千米=1000米x1000米=1000000平方米。1平方米=1米x1米=10分米x10分米=100平方分米。1平方米=1米x1米=100厘米x100厘米=10000平方厘米。

1平方千米=1000000平方米（6个0）

1平方千米=100公顷1公顷=10000平方米平方千米，是我们用来形容某个城市某个省份或者国家占地面积的一个面积单位，它是针对边长为一千米的一个面积描述，即为一千米的平方, 通常平方千米能够非常直观地描述出一座城市、一个省份甚至一个国家的二维空间大小，同平方米一样,它是国家上通用的国际标准的面积单位。1平方千米是边长一千米的一个正方形的面积描述，它的算法就是将一个二维空间下的图形边长换算成千米为单位的基础上在进行相乘之后, 就能够得到平方千米的一个面积单位，平方千米可以说是目前为止最大的面积单位, 一般用来形容城市、省份和国家的占地面积，此外,它也会用来形容地球上的地表面积。除去平方千米外，我们还有很多关于面积的描述单位，比如国内非常常用的亩、国外用的英亩，以及公顷、平方厘米和平方米等等。

先说单倍的平方就是双倍的了，1千米=1000米;1平方千米=1000米×1000米=1,000,000平方米;1公顷=15标准亩;1亩=666.66667平方米;1公顷=10000平方米;所以1公顷=10000平方米;1公顷=0.01平方千米;

平方千米表示边长为一千米的正方形的面积。平方米表示边长为一米的正方形的面积。因为1千米=1000米。所以：一平方米=1m*1m=1(m^2)一平方千米=1000m*1000m=1000000(m^2)由上可知，平方千米和平方米的进率是1000000。

中国陆地面积约960万平方千米，东部和南部大陆海岸线1.8万多千米，海域总面积约473万平方千米。海域分布有大小岛屿7600多个，其中台湾岛最大，面积35798平方千米。中国同14国接壤，与8国海上相邻。省级行政区划为23个省、5个自治区、4个直辖市、2个特别行政区。

1平方千米也叫1平方公里我国陆地面积大约是960万平方千米也可以说成我国陆地面积大约是960万平方公里。

边长是1千米的正方形面积是1平方千米。

一平方千米的正方形，就是四个边长都是1000，1000*1000=1000000(一百万平方米)，折合1500市亩(一平方公里)。

平方千米用字母表示k㎡

10000平方米=10平方千米

回答者：木庄子mzz - 童生 一级 7-30 20:22的回答很正确。需仔细研究。

1平方千米=1000000平方米=100公顷1平方千米就是边长是1千米的正方形的面积

1平方千米=1.0X10的10次方平方厘米

1平方米等于0.000001平方千米。平方千米和平方米都是面积的度量单位。1平方千米是边长一千米的一个正方形的面积描述，它的算法就是将一个二维空间下的图形边长换算成千米为单位的基础上在进行相乘之后，就能够得到平方千米的一个面积单位，平方千米可以说是目前为止最大的面积单位。

中国土地面积海洋面积城市面积

对称句：1、我和母亲在前面，我的妻子和儿子走在后面。2、前面也是妈妈和儿子，后面也是妈妈和儿子。3、母亲要走大路，大路平顺；我的儿子要走小路，小路有意思。4、我的母亲老了，她早已习惯听从她强壮的儿子；我的儿子还小，他还习惯听从他高大的父亲。5、我蹲下来，背起了母亲，妻子也蹲下来，背起了儿子。

My Spare TimeI"m always busy doing all kinds of things.From Monday to Friday ,I have to study at school.So I have my spare time only on weekends.I like playing computer games at home.In the afternoon,I usually play with my friends.Sometimes I help my parents with housework.In the evening ,I often go to the movies.My favorite movies are Superman and Spider-Man.I want to be a hero to help people who need help in the future!

先来一个短些的：My Spare TimeI"m always busy doing all kinds of things.From Monday to Friday ,I have to study at school.So I have my spare time only on weekends.I like playing computer games at home.In the afternoon,I usually play with my friends.Sometimes I help my parents with housework.In the evening ,I often go to the movies.My favorite movies are Superman and Spider-Man.I want to be a hero to help people who need help in the future!再来个长一点的：I"d like to make full use of my spare time. Usually I would do three things in my spare time, reading, playing basketball, and serfing the Interet, which are three of my deepest passions.Reading is one of my favorite ways to my spare time. However I don"t like reading books at home. I prefer to read them in the library. We have a community library down the street. It"s small but has a huge collection of books. I would go there on weekend afternoons checking what"s new in the library and sitting in the reading room to read some of the best magazines and newspapers around the world. The warm and sweet afternoon sunshine accompanied by the smell of books,reading has certainly become one of the best ways for me to spend my spare time.Don"t mistake me as some book-hunger person. I"m sporty too. I love to play basketball with my friends during the weekend. We usually paly 3 to 3. It helps me a lot on getting the essence of team work and assists me to be a better leader while I"m doing my school projects.Internet has become a major media in recent years. My passion for Internet serfing has been growing stronger and stronger. At night when I"m not studying, I would go online and chat with my friends and other people from all over the world, learning different cultures and knowing the big world out there. I would also like to check out the employers who are hiring and try to find a job.Basicallly, that"s how I spend most of my spare time. Reading is a good way to absorb knowledge and become familiar with news events. Playing basketball with friends helps me on building team working skills and interpersonal skills. Serfing on the Internet exposes me to the world"s different cultures and different people that come from different backgrounds.

对称句有：1、挥一挥羊鞭，锦帽貂裘，他将其扔进云霄深处；弄一支秃笔，矮纸斜行，他镌刻出对大汉最深切的眷顾。一边是高官厚禄，一边是赤胆忠心。2、擎一支旌节，他怀抱汉匈和睦的夙愿，奔走于茫茫大漠；扶一阵驼铃，他阔别长安的歌舞升平，游荡于寒沙衰草。3、哀叹，当汉使谋反事败；正气，当苏武拒绝折节叛敌。4、朔风凛冽，他与冷月做伴；胡茄幽怨，他与孤冢为伍，怅望大漠飞雪。5、站着，他是一座山，挺起千年民族的脊梁；坐着，他是一尊佛，念着万载风雨的沧桑。

My Spare Time I am a middle school student. Though I"m busy with my lessons, my spare time is still colorful. After school I usually play sports. I like basketball and football very much. Sports help me to keep healthy and study better. I often do some reading in the evening. I think books are our best friends. They give us much knowledge that we can"t learn at school. So reading books is the best way of spending my spare time. Sometimes I watch TV or surf the Internet. I find it"s a good way to relax myself. At the same time it can also help me open up my eyes to the outside world. At the weekends I often help my parents with the housework. I clean the house, wash clothes and learn to cook. During the summer or winter vacation, I have enough time to do things like volunteering. I help those people who are in need. It"s a good experience for me. I enjoy myself in my spare time.

It is very important for us to know how to use the free time. In my spare time, I often go on line. I usually get information for my lessons, so I can get more knowledge. I often read novels on the computer. I like music. Sometimes I download music and enjoy it. At the weekend I visit my website and write some articles in my blog.Besides computer, I do sports every day to make me healthy and strong.I"m fond of travel. Because it is good for my health. In the course of my journey, I can enjoy the beautiful scenery and social custom of the different places.In a word , we should make good use of our free time.

In my spare time, I have several methods to relax myself. Firstly, I enjoy playing the piano in my spare time, especially when I"m overwhelmed by the pressure and stress, I always turn to my piano. The moment my fingers gently touching the keys and beautiful melody flowing in the air, I feel like in the paradise, and all the upset is disappeared. Besides, sometimes I hang out with some friends and talk with them or have some entertainment together such as watching movies or singing in a KTV and so on. Staying with friends brings me relaxation and comfortableness. In addition, playing badminton is one of my favorite activities in spare time. By doing sports, I can not only relax myself but also keep healthy.

对称句都有如下：1 、那些丝丝入心的思念，始终凝聚在我的笔端，那些念念不忘的真情，永久温暖着彼此的心灵，愿幸福走在相惜相依的路上。2 、 我爱菊，因为它独特；我爱菊，因为它美丽；我爱菊，因为它顽强；我爱菊，因为它不仅有观赏价值，更有医用保健价值；我爱菊，因为它可以陶冶情操；我爱菊，因为它有着高尚的品质。3、总想找一个很爱很爱的人才相爱，可是，莫然回首，才发现没开始爱，怎么会知道很爱很爱那人呢？其实爱情就是在平淡中增浓，爱情就是在生活中开花结果。4、 静者恒静，就让我的心安静地守着你。我愿给你幸福不灭的定理。5 、樱花开的时候我想起你，想你没有原因，也没有理由。突然间的，坐在车上，茫然的看着车窗外的风景，然后，就想起你。

MY SPARE TIME Have you got any spare time?What do you always do on your spare time?If you have spare time now,please have a look my writing ---<my spare time> I am a happpy boy ,i always like doing a lot of things to spend my spare time .My favouret hobby is playing badminton ,a popular sport in the world,i think.Except for this ,i often walk along street ,it"s an interesting way to spend my spare time.Of course ,i like having Chinese tea ,too.I think have tea would make me quiet.Do you have the same ? In fact ,on my spare time ,i always do a lot of different things,but i don"t have enough time right now,i can"t tell you about mine.

如下：1、感恩有你，感恩相伴。2、感恩有你，相守流年。3、感恩有你，珍惜当下。巧用对称句：所谓对称句，就是两两对举出现，而字数不要求完全相等或对称,，不要求完全工整的句子。在议论文中，对称句既可用来说理，又可用来举例。因为它要求用大至整齐的句式，对称的结构来证明论点，有意识地运用对称句，不仅可以提高语言锤炼的能力，而且因为运用论据极为简洁，还可锻炼对事例的高度概括能力。如果说“石韫玉而山辉，水怀珠而川媚”，那么，对称句的应用，也会使文章因之生辉。

My Spare Time at SchoolIn my spare time, I have several methods to relax myself.Firstly, I enjoy playing the piano in my spare time, especially when I"m overwhelmed by the pressure and stress, I always turn to my piano. The moment my fingers gently touching the keys and beautiful melody flowing in the air, I feel like in the paradise, and all the upset is disappeared.Besides, sometimes I hang out with some friends and talk with them or have some entertainment together such as watching movies or singing in a KTV and so on. Staying with friends brings me relaxation and comfortableness.In addition, playing badminton is one of my favorite activities in spare time. By doing sports, I can not only relax myself but also keep healthy.翻译：首先，我喜欢打在我的业余时间弹钢琴，特别是当我被淹没的压力和压力，我总是把我的钢琴。那一刻我的手指轻轻触摸按键，美丽的旋律在空中流动，我感觉像在天堂，一切底价是消失了。此外，有时我挂出了一些朋友，与他们交谈，或看电影等，或到KTV唱歌等一些娱乐于一体。借住在朋友家带给我放松和舒适性。此外，打羽毛球是我最喜欢的活动之一，闲暇时间。通过做运动，我不仅可以放松自己，但也保持健康。

所谓对称句，就是两两对举出现，而字数不要求完全相等或对称，不要求完全工整的句子。对称句，我国古代称为骈偶句。对称句例子：1、天上的星。有的明，有的暗。2、辛勤付出，自然有收获，会赢得人们的尊重，敷衍塞责，自然一无是处，会令人鄙弃。3、朝看晨鸟啼柳绿，夕看晚霞染山红；晴看日丽天高远，雨看船行水迷蒙；眷看雏燕吻桃红，夏 看荷风剪莲舟，秋看风凉月如钩，冬看雪白洁如玉。对称式的句的好处是：不但句式对称整洁好看，更重要的是读起来朗朗上口，有利于表达出良好的意义。对称句的源由：中国语言有一个传统的美学特点，就是讲究句式整齐，音韵和谐。诗歌辞赋不用说，即使是散文，也多有这个特点。出现这种情况，自然与汉语的音韵特点相关，还反映了古人在语言上刻意追求文字布局对称的美。刘知说过：“其为文也，大抵编字不只，捶句皆双，修短取均，奇偶相配，故应一言蔽之者辙足为二言，应以三句成文者必分为四句。”（《史通·叙事》）另外，这种对称的语言，可以壮声势，广文义。

先来一个短些的：My Spare TimeI"m always busy doing all kinds of things.From Monday to Friday ,I have to study at school.So I have my spare time only on weekends.I like playing computer games at home.In the afternoon,I usually play with my friends.Sometimes I help my parents with housework.In the evening ,I often go to the movies.My favorite movies are Superman and Spider-Man.I want to be a hero to help people who need help in the future!再来个长一点的：I"d like to make full use of my spare time. Usually I would do three things in my spare time, reading, playing basketball, and serfing the Interet, which are three of my deepest passions.Reading is one of my favorite ways to my spare time. However I don"t like reading books at home. I prefer to read them in the library. We have a community library down the street. It"s small but has a huge collection of books. I would go there on weekend afternoons checking what"s new in the library and sitting in the reading room to read some of the best magazines and newspapers around the world. The warm and sweet afternoon sunshine accompanied by the smell of books,reading has certainly become one of the best ways for me to spend my spare time.Don"t mistake me as some book-hunger person. I"m sporty too. I love to play basketball with my friends during the weekend. We usually paly 3 to 3. It helps me a lot on getting the essence of team work and assists me to be a better leader while I"m doing my school projects.Internet has become a major media in recent years. My passion for Internet serfing has been growing stronger and stronger. At night when I"m not studying, I would go online and chat with my friends and other people from all over the world, learning different cultures and knowing the big world out there. I would also like to check out the employers who are hiring and try to find a job.Basicallly, that"s how I spend most of my spare time. Reading is a good way to absorb knowledge and become familiar with news events. Playing basketball with friends helps me on building team working skills and interpersonal skills. Serfing on the Internet exposes me to the world"s different cultures and different people that come from different backgrounds.

As a middle school student, I don"t have much free time, but I still have a lot of things to do. I like listening to music and reading, so in my free time, I always listening to music and search the Internet for about half-hour. It"s a good way to relax myself. I always do some reading before go to bed. Besides, I always go to swimming after school. Exercises help me to keep healthy and do good to my study. As the same as other students, I often watch TV in the evening, but I have to finish my homework first. At the weekends, I will help my mother with the housework, such as clean the house, do some washing. And, it"s a time to visit my friends. We are always happy together.作为一名中学生，我没有很多自由时间，但是我仍然有很多事情要做。我喜欢听音乐和阅读，所以空闲时间我经常上网听音乐半个小时。这是自我放松的一种好方式。睡觉前我经常看些书。此外，放学后我经常去游泳。锻炼帮助我保持健康，对我的学习有好处。和其他同学一样，我晚上也经常看电视，但是我必须先完成作业。周末，我会帮妈妈做些家务，比如打扫屋子，洗衣服等等。而且，这也是我拜访朋友的时间。我们在一起的时候总是很快乐。

It is very important for us to know how to use the free time. In my spare time,I often go on line.I usually get information for my lessons,so I can get more knowledge.I often read novels on the computer.I like music.Sometimes I download music and enjoy it.At the weekend I visit my website and write some articles in my blog. Besides computer,I do sports every day to make me healthy and strong. I"m fond of travel.Because it is good for my health.In the course of my journey,I can enjoy the beautiful scenery and social custom of the different places. … In a word,we should make good use of our free time.

写作思路：写出自己空闲时间所作的各种事情，包括读书、做家务、运动等等。I am a middle school student.Though I"m busy with my lessons，my spare time s still colorful.After school I usually play sports.I like basketball and football very much.Sports help me to keep healthy and study better.I often do some reading inthe evening.I think books are our best friends.They give us much knowledge that we can"t learn at school.So reading books is the best way of spending my spare time.Sometimes I watch TV or surf the Internet.I find it"s a good way to relax myself.At the same time it can also help me open up my eyes to the outside world At the weekends I often help my parents with the housework.I clean the house wash clothes and learn to cook.During the summer or winter vacation，I have enough time to do things like volunteering.I help those people who are in need.It"s a good experience for me.I enjoy myself in my spare time.我是一名中学生。尽管学业繁忙，但是我的业余生活仍然丰富多彩。放学后我常常参加体育活动。我非常喜欢打篮球和踢足球。体育运动令我身体健康、学习也更加优秀。到了晚上，我常常会读点书。我认为书籍是我们最好的朋友，它教给了我们许多在学校里学不到的知识，所以读书大大充实了我的业余时间。偶尔我也会看看电视、上上网，这倒是放松自己不错的方式，与此同时，还能开阔自己的视野。周末的时候，我经常帮父母做做家务：打扫房子、洗衣物、学做饭。在寒暑假，我有足够的时间，可以做的事情有很多，比如做一名志愿者，去帮助那些需要帮助的人。

It is very important for us to know how to use the free time. In my spare time, I often go on line. I usually get information for my lessons, so I can get more knowledge. I often read novels on the computer. I like music. Sometimes I download music and enjoy it. At the weekend I visit my website and write some articles in my blog. Besides computer, I do sports every day to make me healthy and strong. I"m fond of travel. Because it is good for my health. In the course of my journey, I can enjoy the beautiful scenery and social custom of the different places. … In a word, we should make good use of our free time.

My Spare Time 　　I am a middle school student. Though I"m busy with my lessons, my spare time is still colorful. 　　After school I usually play sports. I like basketball and football very much. Sports help me to keep healthy and study better. I often do some reading in the evening. I think books are our best friends. They give us much knowledge that we can"t learn at school. So reading books is the best way of spending my spare time. 　　Sometimes I watch TV or surf the Internet. I find it"s a good way to relax myself. At the same time it can also help me open up my eyes to the outside world. At the weekends I often help my parents with the housework. I clean the house, wash clothes and learn to cook. During the summer or winter vacation, I have enough time to do things like volunteering. I help those people who are in need. It"s a good experience for me. I enjoy myself in my spare time. 　　我的业余生活 　　我是一名中学生。尽管学业繁忙，但是我的业余生活仍然丰富多彩。 　　放学后我常常参加体育活动。我非常喜欢打篮球和踢足球。体育运动令我身体健康、学习也更加优秀。到了晚上，我常常会读点书。我认为书籍是我们的朋友，它教给了我们许多在学校里学不到的知识，所以读书大大充实了我的业余时间。 　　偶尔我也会看看电视、上上网，这倒是放松自己不错的方式，与此同时，还能开阔自己的视野。周末的时候，我经常帮父母做做家务：打扫房子、洗衣物、学做饭。在寒暑假，我有足够的时间，可以做的事情有很多，比如做一名志愿者，去帮助那些需要帮助的人们。这对我来说是一份宝贵的经验。总之，我乐享我的业余生活。

你是来干嘛的

我的业余时间

华网北京10月11日电（记者李宣良、白瑞雪）“神舟五号飞行中，环境控制与生命保障系统只能算是进行了试验，这一次神舟六号任务才是环控生保系统的真正使用。”神舟六号飞船环控生保分系统原主任设计师傅岚在接受新华社记者采访时说，“我们的任务，就是竭力为航天员打造更舒适的生活空间。” 人类要想脱离地球探索外层空间，必须设法创造一个人类可以在太空生存的小环境。太空舱内的环境控制与生命保障系统，不但是载人航天器上最具载人特色的一个重要系统，而且直接关系到航天员的身体健康、工作效率和生命安全。 “舱内的空气比地面还好” 当杨利伟乘坐神舟五号飞船从太空返回时，他说：“舱内的空气比地面还好。” 傅岚说，神舟六号和神舟五号采用了同样的供气体调压系统，氧气、氮气由高压钢瓶携带上飞船，通过控制阀进行释放，使得舱内气体成分大致和地面一致。 神舟六号飞船共带了50公斤左右的氧气，不仅可以满足两名航天员多天的需要，还可用于应急状态时使用。由于高压钢瓶装载高压的大气，需要承受210个大气压的压力，所以研制难度较大，一只钢瓶的造价大约为5万元人民币。傅岚说，万一飞船在返回时落在海上，在返回舱内还有一套应急系统可以产生供航天员使用24小时的氧气，并吸收二氧化碳，确保航天员不会缺氧。 在保持空气中充足氧气的同时，飞船内部还采用了先进的通风净化系统，可以将空气中各种灰尘杂质及时清除，使空气质量始终保持在优良等级以上。 温度17到25摄氏度，相对湿度30％到70％ 通过温湿度控制系统，神舟六号返回舱温度将控制在17到25摄氏度之间，相对湿度控制在30％到70％之间。 “这是令人感到相当舒适的环境。” 傅岚说，舱内温度主要依靠专用空调进行控制。空调的工作情况，根据航天员的活动量、飞船受太阳照射程度的变化而自动进行调整。即便是在飞船返回时，飞船外表因与大气的激烈摩擦而达到数千摄氏度，返回舱内仍保持在25摄氏度左右。 相比于温度的控制，对湿度的控制要困难得多。傅岚介绍说，在太空中每名航天员每天通过呼吸、排汗等正常代谢，大约产生1．8公斤左右的水汽。在失重环境下，这些水汽悬浮在空气中。如果不尽快回收，不仅使航天员难以忍受，危及到生命，而且可能使电气设备受潮引起短路。神舟六号飞船是利用水的毛细现象，采用了一种吸附孔隔膜，通过施加一定的压力让空气通过，而水则被吸附下来。将这种隔膜应用于空气循环系统之中，就可以将空气中的水汽有效过滤，使飞船内的湿度保持在相对稳定的水平。 吃喝拉撒设施一应俱全 为了使航天员在太空中吃得更好，除了使食品的口味和种类符合航天员的个人喜好外，还必须创造一个与地球上类似的就餐环境，这样才有利于调动航天员的食欲。傅岚介绍说，神舟六号航天员就餐时将食品放在具有磁性吸附作用的餐盘中，使用刀叉进行进餐。在太空中，航天员可以使用食品加热器对食品进行加热，一般进行30分钟左右的加热后，航天员就可以吃上热的饭菜了。 “航天员喝水实际上不是喝，而是将水射到嘴里的。” 傅岚说，由于飞船中的气压要小于地面上，所以航天员用自己的嘴根本吸不动液体。饮水时，航天员通过一根铅笔一般粗细的吸管将嘴与饮料容器联结起来，通过气泵加以一定的压力，这样饮料就可以源源不断地射进航天员的嘴里。 航天员在太空中的大小便采用了大小便收集系统。“这是一个相当于吸尘器的系统。” 傅岚介绍说，系统有两根塑料软管分别用来对准航天员大小便的排泄器官。在航天员使用时，系统通过吸气，将排泄物收集起来，液体和固体分别保存处理。为了防止大小便产生的气味污染环境，塑料软管在与人体接触时，可以起到很好的密封作用。同时，系统中还使用了活性炭作为除臭吸附剂。 为了尽可能减少航天员的工作量，飞船环控生保系统的工作主要通过自动控制来进行。傅岚说，“这个系统完全是为人服务的，如果没有人，就不需要这个系统。让航天员生活得舒服些，是我们不懈追求的目标。”

以“My Spare Time”为题写一篇英语作文 I do not have the spare time when I have time to go to school, I finished school, I would play basketball, I am very good at playing basketball, I like to play with my clas *** ates, which is when I am very happy day. Sometimes I like to climb, especially on Sundays when many people which is very lively, and sometimes a breath of fresh air is good, makes me feel very unfortable, particularly birds of the woods was interesting, but very tired climbing, But this is a very interesting thing. 以 My Family and My Spare Time 为题目写一篇英语作文 快啊 fortunately,i am a happy member of a happy family,my parents give me a lot of love and support in my road to grow up .i can"t show my appreciation too much for them, in short ,i will study hard and learn much knowledge to e true my dream and in the same to meet thire expectation to my future,when talking about my spare time ,i have much word to say,my spare time has been filled by lots of pleasure and relax,going to moive with our panies ,reading many books i"m interested in ,taking part in various outside activities and so on.through these,my interests to knowledge have been largely developed and i also get a rich and colouful life 以My first time 为题写一篇英语作文 My first time to ride a bike Today I can ride a bike very well. But three years ago, it was too hard for me to ride a bike. Now I still remember my first time to ride a bike. I often fell off the bike, but I didn"t s riding. First I asked my father to help me with my bike. Next, let him not help me and I rode alone. Then I could ride a few minutes. I kept practising. Finally I could ride a bike to school. I was very happy. From this thing, I know nothing in the world is impossible if you set your mind to do it. 以My free time为题写一篇英语作文 Free time? I do a lot of activities during my free time.Some of them are sports. For example, cycling around the neighbourhood, playing badminton with my brother and jogging round the park. Sometimes, I go swimming. You see, I love reading. I usually read novels or storybooks. The book I like the most is " The Magic Faraway Tree" that is written by Enid Blyton from England. I love that story. Next, after reading or sports, I draw and paint. I like arts, especially watercolors and oil paintings. I love the arts of the oil paintings artists. It is very beautiful. Lastly, just take a rest... 请以“My Spare Time为题写一篇英语短文” My Spare Time I am a middle school student. Though I"m busy with my lessons, my spare time is still colorful. After school I usually play sports. I like basketball and football very much. Sports help me to keep healthy and study better. I often do some reading in the evening. I think books are our best friends. They give us much knowledge that we can"t learn at school. So reading books is the best way of spending my spare time. Sometimes I watch TV or surf the Inter. I find it"s a good way to relax myself. At the same time it can also help me open up my eyes to the outside world. At the weekends I often help my parents with the housework. I clean the house, wash clothes and learn to cook. During the summer or winter vacation, I have enough time to do things like volunteering. I help those people who are in need. It"s a good experience for me. I enjoy myself in my spare time. 以His and Her Spare Time为题目写一篇英语作文 In his spare time he often surf the Inter and plays games on it . He also plays basketball with some friends . He sometimes goes climbing mountains. In her spare time she usually take some exercise . She also attend some classes for further study . She often goes to nursing homes to help those in need. She also does some reading at home or does some housework for her parents. 以“he|p my parents”为题写一篇英语作文 My P.E teacher My name is xiaoming,i was a student.i love going to school.because i love having classes.And P.E.lesson is my favorite class.because i like my P.E.thecher.He is a happy young man.He teaches me football,basket ball,pingpong,swimming and so on.He always told me,be careful when i was doing sports.Last sunday we went outside.We play basketball together.We had great fun.He taught me a lot.i love the way he taught me.And i think we could be friends forever. 以《My Room》为题写一篇英语作文 I have a new room.. There is bookcase, chair, desk, table, bed in my *** all room. My hat is on the chair. My baseball is under the bed. My school ID card is on the table. My CDs are in my backpack. Oh, there is a picture of mine on the wall. My room is very nice. I like it very much. Do you have your own room? Tell me! 以 My Grandma 为题写一篇英语作文 Grandma, a word is almost familiar to everyone as we are all bound to have one. For me, my grandma has the Chinese female"s traditional virtues: kindness、generosity、prudence and optimi *** . Not only the relatives but also her neighbors speak high of her. Now in my writing, I want to talk about my grandma in my eyes. My grandma is seventy-five years old now.He used to work in a factory near our home.He lives with us and help our famliy do some housework such as cooking for us since he was retired.My grandma gets on well with our neighbour.He always encourage me to study hard.I love him very much. 以my future 为题写一篇英语作文 In the future, I want to be a teacher, because teacher can teach students and tell them what is good, what is bad. teacher also know many things, can give us the right way to study. teacher can give us the knowledge, help others to find a good job in future. My future Everyone"s future is different. I think my future will be wonderful. I will be a teacher in the future,because I like teaching my clas *** ates about their difficult questions,they all think l am friendly. I study very hard. I always do my homework carefully. I also like reading books very much,books are useful. But l think l should study harder than before. That"s my future. My future As the song goes “ My future isn"t a dream .” I love the song which brings me confidence when singing it every time . I believe that all our dreams can e true if we have courage to pursue them .When I was young my father always asked me what I would be in the future . Sometimes I found it very hard to give a certain reply . “ I want to be a doctor .” “ I want to be a teacher .” and “ I "d like to be a scientist !” Many of these answers are perhaps very childish and ridiculous . But I never think they are far away .

加内存条。根据查询相关信息显示，z8型号配置高，8g内存会拉低电脑运行速度，加一条组双通道。神舟电脑拥有世界一流的生产设备，年产2万台笔记本、1万台式机、1万台液晶显示器和5万台屏式电脑的巨大产能，为神舟的腾飞打下了坚实的基础。

My Spare Time （ 八年级 ）作文 I am a student. I spend more time at school, because I am busy at studying. So my spare time is very few. In my spare time,I often play puter games. But it is bad for my healthy, So I plan to make my time bee more colorful, and I have done some housework. That is really a great fun for doing housework. I am very happy that I can help my parents to do some housework, It is my greatest spare time! 八年级作文my favorite subject 第一篇： Do you like math ? Yes, I like math best. I like to read the numbers . I think it can give me many happy. When I do the math , I am very excited. It is easy to finish it. So it donesn"t spend me so much. But I like to do the difficult problems. When I finish the difficult one, I am very happy. Sometimes I sing and dance. I really like math. And you ? 第二篇： What subject do you like best? I like English. I want to travel around the world when I grow up. So I must study English well. My teacher always says it is very important to learn English well. And learning English is very interesting. It makes me happy. We can know about the things in other countries. It is better for me to travel. 第三篇： I think Chinese is my favorite subject. Everyone can speak Chinese in China. But maybe you can"t get good grades. It looks easy. But it is a little difficult. My Chinese is good. I like to write the dairy evry day. I like the story books. And I like to read. When I stay in bed, I always read the book. I think it is funny to read. And I think it can help me improve my Chinese. Do you think so ?Please tell me. 第四篇： I like Chinese best. I think it is very important for me to learn Chinese well. Because I want to be a reportor when I grow up. So I will write the articles to the magzines and newspaper. So I have to learn Chinese well. And I want to write the stories . I like writing. I want to be a writer. So I must study Chinese now. How about you? 第五篇： My favoritor subject is English. I think English is very important . And most people in the world can speak English. If you go to France, and you can"t speak French, you can speak English. Most people in France can speak French. So it is very important to learn English well. Everyone should learn English well. 楼楼加油哦，这个从网上摘得。 参考资料： :frjy./zuowen/Html/english/Class17/1402120090301081328. 八年级my advice to my friend 60字作文 I have a good friend. She is a pretty girl. She lives in Jiujiang. She is a middle school student. She has big eyes, a *** all mouth, a *** all nose and a round face. She is tall and thin. She likes watching TV and playing the basketball. On the weekend, she always plays basketball with her friends in the afternoon and watches TV in the evening. She is a good student. She is good at English. She likes speaking in English. She always reports news in English in her school. She says we are good friends. We often send e-mails to each other everyday. I like her very much. 2.My best friend and I get along with each other quite well. But we are so different. He is a quite funny outgoing guy but I am very serious. He is an athletic boy and is able to play all kinds of sports but I am only *** art on study. My friend is wild and I am calm. He is tall, thin, strong,with shorthair,. And sometime he is very careless and lazy. On the other hands, I am short, fat, weak, with shorthair. He is very helpful because I am very lazy and don"t want to do any sports. And I will help him with his study. I think our friendship is beautiful. my happy thing(s)作文八年级的 The city es across everyone"s lifetime lots and lots of thing.Of course ,our neither exception.Come across the too grieved thing ,the regret thing ,happy thing in my lifetime.Because of the time fleeting ,me also gradually have faded from self"s memory.May have a matter ,seeming to carve having been member of me makes me all self"s life unfettable in the heart!When that is still my elementary school,once have a holiday.I have just made an appointment with young several buddies ,a go to the mountain.In that day,we like to eat something arriving in Shan Shang going sight-seeing with self respectively.A few moments later,we crawl right away having arrived at a mountain.Heavy fine wind Oh,we sit on stone.Eat something as well as,breaking a jest. 八年级my future 英语作文 中文：我的未来 “未来”这个存在着无限幻想的词汇！对于未来，我们有太多的幻想空间，我们永远不知道未来会发生什么？但至少我们可以去幻想，去幻想美好的未来。或许未来不是你所幻想的那样，但至少你的幻想可以当做一个美丽的梦！在这个梦中，你随心所欲，做一切你想做的事，做一个你认为最完美的你！“未来”是一个值得关注的焦点，值得我们去关注的 *** ！ “未来”——充满着无限美好！或许现在的卧室一个懒散、不爱学习、又不听父母话的孩子。那么我将幻想未来的我是一个勤劳、刻苦学习、又乖巧的女儿；或许现在的我是一个懦弱、动不动就流泪的、非常胆小的女孩，那么我将幻想未来的我是一个坚强、勇敢、不再流泪的女强人；或许现在的我是一个任人欺负的小绵羊，那么我将幻想未来的我是一个武林高手，让那些人听到我的名字就不寒而栗······ “未来”——充满着无限向往！我幻想我的未来每天都是晴空万里，天边永远挂着想棒棒糖一样美丽七彩的彩虹；在我工作的地方充满着笑声，一直传到很远很远的地方；当我到学校回想往事的时候，可以听见朗朗的读书声；当我回到故乡的时候扑鼻而来的是花的香气、大地的香气、小草的香气；看到了花的娇艳、大地的坚实，小草的顽强；更重要的是孩子们的欢声笑语！ 英文：my future "Future" there is existing boundless fantasy vocabulary in this! To future, we have very much fantasy space , we will never know what to may happened in future? We can get rid of fantasy but at least , get rid of fantasy bright future. Probably, future is not your institute fantasy like that, but your fantasy can at least regard as a beautiful dream! In this dream, you do as one likes , act as everything you think of the thing posing , act as a your regarding it being the most consummate you! "Future" is a focal point being worth it paying close attention to , is worth it our climax goes and paying close attention to! "Future" is being full of boundless fine! Probably, bedroom now one indolent , does not love the child who studies , not listening to parents words"s. Then I with my be that one is diligent , study assiduously , cute fantasy future daughter; Probably now"s I am a cowardly , easily burst into tears , very yellow-bellied girl , my general fantasy is then future I am a able woman who firm , brave , bursts into tears no longer; Probably now"s I am one at other"s wish *** all sheep bullying, my general fantasy is so future I am a world or circle of wushu past master , the name let those person hear me is full of with regard to very frightened ······ "future" yearn for that boundlessly! My fantasy my ing every day all is a clear and boundless sky , remotest places thinks of lollipop kind of seven colored beautiful rainbow being hanging forever; Local working in me is full of laughter , is conducting till very far very distant place; While I recall past events to school, can hear bright reading a book; The fragrance being multicolored fragrance , the earth , for a short time careless fragrance assailing the nostrils but ing while I return to hometown; Solidity having seen multicolored tenderness and beauy , the earth , for a short time careless indomitableness; More important be cheering and laughing of the children! 英语作文MY Free Time 2100词八年级第二单元 My free time I have lots of things to do in my free tim e. I like listening to music in my free time.It is relaxing. One of my favorite things is reading.Rea ding is helpful to my writing and lets me happy. As we know, surfing the Inter is very popular aroung the world.I always play c omputer games. I take lots of exercise to keep fit.I often spend forty minuters doing exercise in t he morning every day. My free time is colorful. 英语作文 My life in ten years 八年级作文 my life in ten years,there will be less pollution and more trees.people will use cars fewer.we wont use money everything will be free.the students wont go to school,they will study on the puter.by the way our life will be better and better 八年级英语作文 my favorite program 　My favorite program Nowadays radios and TVs play a more and more important role in our daily life. There are many programs shown every day. Some of them are very good. My favorite program is called“The Animal World”， which is broadcast by CCTV every Sunday night. The program provides us with natural scenes， the life of all kinds of wild animals and the wonderful explanation about it. We also acquire some knowledge about animals， even some plants. So in my opinion， it is an interesting as well as an instructive program. Be sides， the pictures are very beautiful. It"s really a great joy to watch it. If you don"t believe it， Just watch it yourself. E智网为你解答，希望可以帮助到你！ 八年级MY future英语作文120字 现在，我常常在想我的将来会是怎么样的，会做什么事情，干什么工作？我想自己将来会成为一个治病救人的好医生。那时候，我会穿着一套白色的衣服，在医疗室里不停地为病人动手术，把那些病人一个个从死亡线上给救回来。他们纷纷向我表示感谢，我谦虚地告诉他们这是我一个人民医生应该做的。记者什么的都来向我采访，替我做报导。我说不必了，因为这一些都是小事，应该报导表扬那些教我做人，给我知识的老师和长者。 我还想过将来自己全当一个老师。站在讲台前满腔热情地为小朋友们讲课，做实验。那些小朋友津津有味地听我讲课，看我做实验。在我的带动下，学生们纷纷动手做起了实验。啊，那些学生真是了不起，不但专心听课，而且会动脑筋，提出来的一些问题让我一下子不能够回答。怎么办？我就实事求是地告诉他们我还没有弄懂，回去思考，希望他们也去动脑筋，看看谁先想出来。 我想自己将来还可能成为一个警察。只要哪里发生事情，我就会第一个赶到那里去处理事情，抓住坏人，让人民安居乐业。 我想自己将来可能会成为别的什么样的工作者，但是不管怎么都会为人世谋幸福，让大家因为有了我，而感到高兴、感到幸福！Now, I often wonder what kind of future I will do something, what work? I think that they will bee a life-saving good doctor. At that time, I will be wearing a white dress, kept in the medical room for patients operated on those patients a month from the dead to e back online to save. They all thanked me, I humbly tell them this is my people, a doctor should do. What journalist came to interview me, give me a report. I said that was unnecessary, because of these are *** all things, it should be reported in recognition of a man who taught me to give me knowledge, teachers and elders. I also thought about the future as a teacher his whole. Standing in front of the podium for the kids enthusiastically lectures, doing experiments. I relish those kids listening to lectures, watching me to do experiments. In my lead, the students have hands-on start in the experiment. Ah, those students really great, not only to concentrate on lectures, but will use their brains, some of the issues raised so that I can not answer at once. How to do? I seek truth from facts to tell them that I have not yet understood, go back and think, I hope they go to use their brains to see who should want to e out. I would like to own in the future may also bee a policeman. As long as where something happens, I"ll rush the first one there to handle things, to seize the bad guys, let the people live and work. I want to own anything else in the future may bee the kind of workers, but no matter how well-being will be for the dead, so that everyone because of me, and am happy happy! 八年级作文 我的快乐然我是一个有点内向的女孩儿，但是我的内心中充满了自信。我相信风雨后总能见到彩虹，我相信只要付出努力就能收获成功，我相信……正因为我的自信，使我沐浴着阳光，享受着快乐。上三年级的时候，才刚刚开始学习写作文，我就落在了起跑线上。每次发下我的作文，上面都是老师那红笔勾勒的圈圈点点，文后的评语占我当时作文的三分之二，例如:错别字太多、语句不通顺、层次不清、没有中心、太枯燥……尽管这样，可我并没有对写作失去兴趣，虽然我现在写得一塌糊涂，但我不相信我永远写不好作文。从那以后，我为自己定下了计划：每周写一篇周记，必须是亲身经历的，不写作文书上见过的；平时，留心观察周围的一切，将有意义的随时记录下来。后来，我们又学习了修辞手法，我是这把修辞手法运用在作文里，是作文显得更加生动了。而且我迷上了读小说、散文，书架上摆满了各种书籍。我的作文水平犹如寒冬转暖夏的气温，在一天天的提高着，再加上老师的细心指导，使我的作文水平更是蒸蒸日上、突飞猛进。后来，我参加了“我的暑假”征文活动，没想到，我居然得了一等奖。十岁的时候，爸爸为我报了一个去哈尔滨和俄罗斯的夏令营，我是其中年龄最小的一个，爸爸妈妈总有些不放心，对我嘱咐这嘱咐那，我自信的对他们说：“你们放心吧，我会照顾好自己的。”当我们最后一天从哈尔滨返回的时候，在火车站，我与其他团员走散了，可当时十岁的我一点也没有害怕，因为我相信自己。我沉着冷静地找到了开往济南的火车，最后，和大家在火车上碰面了。自信就像是一盏永不灭的灯，在你遇到黑暗时为你照亮前进的路；自信就像是一条迎风行驶的小船，载着你闯过风风雨雨；自信就像是一位知心的朋友，在生活中告诉你许许多多做人的道理；自信就像是…… 正是因为我的自信，改变了我的作文命运，否则我怎能在作文比赛中获得一等奖；正是因为我的自信，使我在夏令营中锻炼了独立自主的能力；正是因为我的自信，使我能够遇到问题勇敢面对；正是因为我的自信，使我……是我的自信使我懂得了很多很多，是我的自信使我快乐的生活着。我愿永远充满自信，永远快乐生活！

我的课余时间我的课余时间会和朋友聊聊天，交流一下感兴趣的事情，有时候和大家一起做游戏，偶尔会到操场散散步，打羽毛球，有时候课间太累的话，会稍微睡一下，放松一下疲惫的身体，以便迎接接下来的课程。My spare timeIn spare time ,I talk with friends, discuss some interesting , and sometimes play games with others, Occasionally to the playground for a walk, play badminton, sometimes break too tired, can sleep a little on classroom, relax the tired body ， in order to meet the next course.