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81. | space propultion |
| 空间推进 |
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82. | auxiliary propulsion |
| 辅助推进 |
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83. | advance of ice cover |
| 冰层推进 |
|
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84. | reaction propulsion |
| 反作用力推进 |
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85. | guided missile propulsion |
| 导弹推进 |
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86. | chemical propulsion |
| 化学推进 |
|
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87. | TJP (Turbojet Propulsion) |
| 涡轮喷气推进 |
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88. | turbine propulsion |
| 涡轮推进 |
|
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89. | solar propulsion |
| 太阳能推进 |
|
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90. | descent propulsion |
| 下降推进 |
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