| 1. | The two spacecraft will link up (with each other) in orbit . |
| 两艘宇宙飞船将于轨道上(互相)连接。
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| 2. | The Russians plan to put a satellite into orbit round Mars. |
| 俄国人计画把一颗人造卫星送入环绕火星的轨道。
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| 3. | The spacecraft is in orbit round the moon. |
| 该航天器在绕月球轨道上飞行。
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| 4. | How many satellites have been put into orbit round the earth? |
| 有多少颗人造卫星已送入绕地球轨道？
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| 5. | Marketing does not come within the orbit of his department. |
| 市场推销业务不归他这一部门管。
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| 6. | The satellite was launched into orbit around the moon. |
| 卫星被送入环绕月球的轨道。
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| 7. | How many sate lilts have been put in orbit round the earth? |
| 有多少个人造卫星已被送入绕地球的轨道。
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| 8. | A killer satellite can home in on other objects in earth orbit and destroy them. |
| 杀伤卫星能追踪其他在地球轨道上飞行的物体并摧毁它们。
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| 9. | The launch vehicle lifts the satellite into the orbit . |
| 运载火箭把人造卫星送入运行轨道。
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| 10. | Alternatively, if the star were small, the life-supporting planet would have to have a close orbit round it and also provide the perfect conditions for life forms to develop. |
| 反之，如果恒星很小，维持生命的行星就要在离恒星很近的轨道上运行，而且要有极好的条件才能使生命得以发展，
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