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| 81. | space propultion |
| 空间推进 |
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| 82. | spacecraft propulsio |
| 航天器推进 |
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| 83. | auxiliary propulsion |
| 辅助推进 |
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| 84. | atomic propulsion |
| 原子推进 |
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| 85. | propulsion trial |
| 推进试验 |
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| 86. | TJP (Turbojet Propulsion) |
| 涡轮喷气推进 |
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| 87. | propulsive horsepower |
| 推进马力 |
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| 88. | advance of ice cover |
| 冰层推进 |
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| 89. | propulsive performance |
| 推进性能 |
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| 90. | solar propulsion |
| 太阳能推进 |
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