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【英语时差8,16】地球同步卫星:速度和轨道-上

时间:2015-12-22 05:53:01

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(单词翻译)

 A geostationary satellite orbits the planet at the same rate as the planet rotates, so the satellite is always over the same patch of ground. Cool! I’d like to have one of those about twenty feet over my house. Sadly, geos only work easily at one distance: 22,500 miles up. Other satellites can have different orbits, can’t they? Yes, they can. But that’s because they can also move at different speeds. A geo doesn’t have that option - by definition it must orbit at the same speed as the earth turns. And that speed determines how high it must be!


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0 rotates cc5de286ed0d2a5172b411eb76b98a08     
(使某物)旋转[转动]( rotate的第三人称单数 ); (使某人或某物)轮流[按顺序循环]
参考例句:
  • The post of chairman rotates among members of the committee. 主席一职由委员会的成员轮流担任。
  • The earth rotates on its axis once every 24 hours. 地球每24小时依其轴心自转一次。
0 work OoOyu     
n.工作,劳动
参考例句:
  • We all work hard.我们都努力工作。
  • Her work is to take care of the children.她的工作是照料好孩子。
0 turns 7b27dc1e1a23efc62996ca016c97769e     
v.(使)转动( turn的第三人称单数 );旋转;(使)改变方向;(使)不适
参考例句:
  • The students took turns to clean up their classroom. 学生们轮流打扫教室。 来自《简明英汉词典》
  • Susan and her brother take turns (at) doing the dishes. 苏珊和她的兄弟轮流洗盘子。 来自《简明英汉词典》
0 orbits c3673099d1e5c9a7cb96c1c612aaaed3     
轨道( orbit的名词复数 ); 势力范围
参考例句:
  • The man-made satellite orbits the earth every 48 hours. 那颗人造卫星每48小时绕地球轨道运行一周。
  • The earth orbits the sun once every 365.25 days. 地球每365.25天绕太阳轨道一圈。
0 earth ar7xL     
n.陆地;大地;地球
参考例句:
  • The earth moves round the sun.地球绕着太阳转。
  • Spring returns to the earth.大地回春。
0 Miles aoczUD     
n.英里( mile的名词复数 );很多;一英里赛跑;大面积
参考例句:
  • Eight kilometres is roughly equivalent to five miles. 八公里约等于五英里。
  • a fortress town enclosed by four miles of ramparts 由四英里长的城墙围着的设防城镇
0 speed evFwb     
vt./vi(sped,sped,speeded,speeded)加快;飞跑;n.速度
参考例句:
  • The car was running at high speed.汽车急速地向前行驶。
  • We'll never get there if he doesn't speed up. 如果他不快些走,我们一定到不了那里。
0 satellites 2db8c39a74e44ef5e087a2db922e7bc5     
n.卫星( satellite的名词复数 );人造卫星;卫星国;附庸国
参考例句:
  • Many countries have sent up man-made satellites to circle the earth. 许多国家已经发射人造卫星围绕地球运转。 来自《简明英汉词典》
  • The previously unidentified objects have now been definitely ascertained as being satellites. 原来所说的不明飞行物现在已证实是卫星。 来自《简明英汉词典》
0 different LmJyb     
adj.不同的,有区别的,不一致的
参考例句:
  • We are in different classes.我们在不同的班级。
  • I had a different idea.我有一个不同的主意。
0 also 5LHyk     
adv.也,亦;并且;同样;而且,还
参考例句:
  • I also like chocolate ice cream.我也喜欢吃巧克力冰淇淋。
  • People also like to have a Christmas tree in the living-room.人们同样喜欢在起居室内摆一棵圣诞树。
0 option uJlxz     
n.选择,取舍,选择权,选择的自由
参考例句:
  • You will have to pay them;you have no option.你必须付给他们钱,别无选择。
  • The option for peace should never be closed off.和平的选择之门永远不应被关死。
0 easily RrTxN     
adv.容易地,轻易地,顺利地
参考例句:
  • Money that is easily come by is often easily spent.钱来得容易往往也花得容易。
  • Let's not take the car,we can easily walk over. 我们不用坐车,走着去很方便。
0 orbit oJVxu     
n.轨道;vt.使沿轨道运行;使进入轨道运行;vi.沿轨道运行,环行
参考例句:
  • The space rocket was launched and went into orbit.宇宙火箭发射后进入轨道。
  • We can draw the earth's orbit round the sun.我们可以画出地球绕太阳运行的轨迹。
0 house 3cbxG     
n.房屋
参考例句:
  • They painted the house themselves.他们亲自油漆了房屋。
  • I passed by your house.我经过你的家。
0 rate 3Tux1     
n.比率,率,速度,价格,费用,等级;vt.估价,认为,鉴定等级,责骂;vi.被评价
参考例句:
  • England will increase the rate from 5 to 6 per cent.英国将提高利息从5%到6%。
  • How do you rate our team's chances of winning?你认为我们队获胜的概率是多少?
0 speeds f88a1518ac11072847b2d8c171b0ab9a     
n.速度( speed的名词复数 );快速;快门速度;感光度v.急行,加速( speed的第三人称单数 );超速行驶;快速运送;加速,促进
参考例句:
  • A catalyst is a substance which speeds up a chemical reaction. 催化剂是一种能加速化学反应的物质。 来自《简明英汉词典》
  • The cheetah can attain speeds of up to 97 kph. 猎豹的奔跑速度每小时可达97公里。 来自《简明英汉词典》
0 patch h3Xzw     
n.补丁;斑;一小块地;vt.补,修补
参考例句:
  • This patch looks a bit unprofessional.这块补丁有点像出自外行之手。
  • We managed to patch our quarrel.我们设法平息争吵。
0 cool gZ6yQ     
adj.凉的,凉爽的
参考例句:
  • Open the window to cool the room.打开窗户使房间凉快一些。
  • You look cool in brown.你穿着褐色的看起来很酷。
0 planet A26z1     
n.行星
参考例句:
  • Neptune is the furthest planet from the sun. 海王星是离太阳最远的行星。
  • Rubbish, however, is only part of the problem of polluting our planet. 然而, 垃圾只是我们这个星球的污染问题的一个方面。
0 distance Hs3xx     
n.距离;路程
参考例句:
  • A very small distance or space.非常小的距离或空间。
  • It depends on traffic and distance.这要看交通和路程的远近。
0 high hddxQ     
adj.高的,高度的,高级的,高尚的;adv.高高地
参考例句:
  • How high are we flying?我们飞行高度是多少?
  • How high is the mountain?这山有多高?
0 sadly bjFz5L     
adv.悲痛地,悲惨地,悲伤地
参考例句:
  • She looked at him sadly.她难过地看着他。
  • Sadly the good times aren't returning any time soon.遗憾的是,好时光不会很快就回来。
0 definition YxjxE     
n.定义;限定,确定;清晰度
参考例句:
  • The book attempts a definition of his role in world politics.该书要阐明的是他在世界政局中的作用。
  • I made a definition for this word.我给这个字下了定义。
0 as pNiyL     
conj.按照;如同
参考例句:
  • He got work in a hotel as a waiter.他在一家旅馆找到了当服务生的工作。
  • In the hotel,the old men were drinking away as usual.在旅馆里,这些老人和往常一样喝个不停。
0 move 5Fpxr     
vt.移动;感动;vi.移动;运行;n.走棋;步骤
参考例句:
  • I move the mouse by hand.我用手移动鼠标。
  • Would you help me move the table?你能帮忙我移一下桌子吗?
0 twenty zUbzN     
num.二十
参考例句:
  • This textbook has twenty lessons.这课本有二十课。
  • There are twenty tomatoes in the box.箱子里有二十个西红柿。
0 determines 14f28e29ede89199b74790592530fac4     
(使)下决心, (使)做出决定( determine的第三人称单数 ); 决定; 确定; 使决定
参考例句:
  • The amount of rainfall determines the quality of the crop. 降雨量决定着收成的好坏。
  • A scan determines the position of the baby in the womb. 扫描可以确定胎儿在子宮中的位置。
0 because EQXyl     
conj.由于,因为
参考例句:
  • Because his car is old.因为他的汽车旧了。
  • He was late because of an accident.他是因事故而迟到的。
0 always uLSyb     
adv.总是,无例外地;永远,始终
参考例句:
  • The nurse is always full of thought for her patients.这名护士对病人总是关心备至。
  • You are always welcome here.在这儿你永远受欢迎。
0 satellite OYyxO     
n.卫星
参考例句:
  • The moon is a satellite of the earth.月球是地球的一颗卫星。
  • A man-made satellite has been launched.人造卫星上天。
0 only bIzxE     
adv.仅仅,只不过;adj.唯一的;conj.可是,不过
参考例句:
  • We have only one earth.我们只有一个地球。
  • I only found it by accident.我只是碰巧找到的。
0 ground 3fWxX     
n.土地,战场,场地;adj.土地的,地面上的;v.放在地上,使...搁浅,打基础
参考例句:
  • The baby is playing on the ground.婴儿正在地上玩。
  • He picked a pen from the ground.他从地上捡起一支钢笔。

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