10. Pyramids, cathedrals, and rockets exist not because of geometry or thermodynamics, but because they were first a picture in the minds of those who built them.
11. Some futurists envision nanotechnology also being used to explore the deep sea in small submarine, or even to launch finger-sized rockets packed with micro miniature instruments.
12. Unfortunately, he died when the "rockets" exploded.
不幸的是，他死于“火箭”爆炸。
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13. He lit the "rockets" and disappeared into the sky.
他点燃了“火箭”，然后消失在天空中。
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14. People can only fly rockets into space right now.
现在人们只能把火箭送入太空。
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15. The rockets take astronauts and man-made satellites into space.
火箭把宇航员和人造卫星送入太空。
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16. In 1956, he set up the first research institute of rockets and missiles.
1956年，他建立了第一个火箭和导弹研究所。
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17. Li Zixuan says that when he was a child, he heard about rockets and spaceships.
李子轩说，他小时候就听说过火箭和宇宙飞船。
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18. After he graduated, he became a teacher as well as a researcher who studied rockets and missile theories.
毕业后，他成为了一名教师以及研究火箭和导弹理论的研究员。
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19. Two of them have already been sent up into space, using rockets and then later filled with air.
其中两个已经坐上火箭被送入太空，氧气也已备足。
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20. From his father, he knew that scientists make rockets to carry things into space, and spaceships are used to carry people through space.
从他父亲那里，他得知科学家们制造火箭来把东西送入太空，而宇宙飞船是用来载人穿行太空的。
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21. Objects, like bits of old space rockets or satellites, move around the planet at very high speeds, so fast that even a very small piece can break important satellites or become dangerous to astronauts.
22. Unfortunately, we do not know how to build rockets that fast!
遗憾的是我们不知道怎样制造这么快的火箭！
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23. In the early 1960s, researchers tried firing rockets trailing wires into thunderclouds to set up an easy discharge path for the huge electric charges that these clouds generate.
24. Later in the century scientists and technicians started to look at the practical purposes for which fireworks might be employed, such as using rockets to help sailors establish their position at sea.
在该世纪后期，科学家和技术人员开始研究烟花的实际用途，比如利用烟花帮助水手确定他们在海上的位置。
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25. The 2009 Visions From The Past "kalender" provides plenty of fuel for one's retro rockets.
