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| 11. | The path of a celestial body or an artificial satellite as it revolves around another body. |
| 运行轨道天体绕另一天体或人造卫星绕一天体旋转所运行的轨道 |
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| 12. | The launch vehicle lifts the satellite into orbit. |
| 运载火箭将人造卫星送入运行轨道。 |
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| 13. | U.S. space station; in orbit 1973-79. |
| 美国的太空站；-在太空轨道运行。 |
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| 14. | The satellite is orbiting around the earth. |
| 卫星正绕着地球轨道运行。 |
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| 15. | minimum orbital unmanned satellite |
| 最低轨道运行的不载人卫星 |
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| 16. | The stars in their courses, ie the way they appear to move |
| 在轨道中运行的星球 |
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| 17. | The space shuttle will orbit a weather satellite. |
| 航天飞机将把一个气象卫星送入运行轨道。 |
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| 18. | stars in their courses |
| 沿着轨道运行的星辰|命运 |
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| 19. | automatically erected earthorbiting laboratory |
| 自动安装的地轨道运行实验室 |
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| 20. | 1963年的今天，美国与苏维埃领导人间的热线投入运行。 |
| Hotline between U. S. and Soviet leaders goes into operation. |
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