宇宙飞船进入地球大气层时被烧毁。
The spacecraft burned up as it entered the earth's atmosphere.
微型火箭附在宇宙飞船上，用来推进飞船飞向火星。
The tiny rocket is attached to the spacecraft and is designed to propel it toward Mars.
反光器被一个框紧紧地固定在宇宙飞船的各个侧面。
The reflector is held onto the sides of the spacecraft with a frame.
如果一架宇宙飞船飞行超过每秒11公里，它就能摆脱地球引力。
If a spacecraft travels faster than 11 km a second, it escapes the Earth's gravitational pull.
我们都在看我们的宇宙飞船。
这个宇宙飞船和宇航员们向月球进发。
这就是宇宙飞船的声音吗？
它像一艘降落的宇宙飞船。
宇宙飞船重新进入地球大气层时烧毁了。
The spacecraft burned up when it re-entered the earth's atmosphere.
他们每年至少向外太空发射两艘宇宙飞船。
They launched at least 2 spaceships into outer space each year.
拴链就像绳子，连接着太空行走者和宇宙飞船。
Tethers are like ropes, connecting the spacewalkers with the spacecraft.
你的朋友即将要登上一搜宇宙飞船，要去探索木星还是什么。
Your friend is about to go on the spaceship, which is going to do the exploration of Jupiter or whatever.
这张图拍摄于九十年代中期，来自名为克莱门汀的美国宇宙飞船。
This image is from the mid-90s, from the American spacecraft called Clementine.
在未来的几年里，宇宙飞船将像公共汽车、火车和飞机一样受欢迎。
In the coming years, spacecraft will be as popular as buses, trains and planes.
太空中平均每立方厘米只有两个氢原子，这对低速飞行的宇宙飞船不构成威胁。
There are just two hydrogen atoms per cubic centimeter on average in space, which poses no threat to spaceships traveling at low speeds.
宇宙飞船的位置可以根据追踪它的无线电信号来确定，也可以用望远镜和雷达来确定。
A spaceship's position can be located by following its radio signal, or by using telescopes and radar.
他们说，在本世纪末之前，无人驾驶的宇宙飞船就能到达那里，让今天活着的人们及时看到它。
They say it could be reached by an unmanned spaceship before the end of the century in time for people alive today to see it.
“气球”宇宙飞船使用水力向太空推进，成本大约是普通宇宙飞船的三十分之一。
The "Balloon" spaceship uses water to push it through space and costs about one-thirtieth of a normal spaceship.
一些宇宙飞船已经飞出了太阳系。
这些宇宙飞船燃烧化学燃料，而这些燃料非常昂贵。
These spaceships burn chemical fuels (燃料) and they are very expensive.
这些宇宙飞船是用一种坚固的材料制成的。
1961年，第一艘载人宇宙飞船被送入太空。
The first spacecraft with a human was sent up into space in 1961.
恐怕我们今天下午完成不了宇宙飞船模型了。
I'm afraid we can't complete the model spaceship this afternoon.
科学家称，水动力宇宙飞船可以大幅减少火星之旅的成本。
Scientists say that a water-powered spaceship could make the trip to Mars much cheaper.
李子轩说，他小时候就听说过火箭和宇宙飞船。
Li Zixuan says that when he was a child, he heard about rockets and spaceships.
科学家们表示，这种宇宙飞船的最大优势是成本低。
Scientists say the biggest advantage of such a spaceship would be cost.
宇宙飞船在前往火星的漫漫长途之中，必须携带大量的水。
The spaceship will have to carry a lot of water for the long trip to Mars.
一家美国公司已经研发出一艘这样的宇宙飞船。
现在的宇宙飞船可以把东西送入太空，但它们不太适合远距离飞行。
Today's spaceships are fine for getting things into space, but they are not so good at travelling long distances.
全国人民为中国所有的宇宙飞船成功返回地球而感到自豪。
People all over the country feel proud that all China's spacecraft have successfully returned to the earth.
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