| 11. | The rocket went up in a spiral. |
| 火箭旋转着上升。
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| 12. | The Moon is likely to become the industrial hub of the Solar System, supplying the rocket fuels fro its ships, easily obtainable from the lunar rocks in the from of liquid oxygen. |
| 月球很可能成为太阳系的工业中心。从月球上的岩石中很容易提炼出液态氧，作为航天飞船的燃料。
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| 13. | To escape from the Earth in a rocket , one must travel at seven miles per second. |
| 要乘坐一枚火箭飞离地球，火箭的速度要达到每秒7英里，
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| 14. | Imagine a rocket that can travel at the rate of light! |
| 想象一下能以光的速度飞行的火箭。
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| 15. | As the first rocket burns out, the second-stage motor ignites. |
| 当第一节火箭燃料烧完时，第二节火箭的助推器就点火。
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| 16. | The invention of a space rocket took many years. |
| 宇宙火箭的发明花了许多年的时间。
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| 17. | rocket designed to destroy another in the air |
| 反弹道导弹
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| 18. | a rocket manned by trained astronauts |
| 载有受过训练的宇航员的火箭
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| 19. | reverse the thrust of the rocket motors |
| 使火箭发动机产生逆向推力
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| 20. | rocket along, away, off, past, etc |
| 飞快地行进, 离开, 离去, 越过等
|