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| 71. | electric propulsion |
| 电推进 |
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| 72. | impelling action |
| 推进作用 |
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| 73. | enhancing the economic reform |
| 推进经济改革 |
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| 74. | piston-like movement |
| 活塞式推进 |
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| 75. | efficiency of propulsion |
| 推进效率 |
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| 76. | driving surface |
| 推进面 |
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| 77. | To drive forward;propel. |
| 推动，推进 |
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| 78. | frontal advance |
| 前缘推进 |
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| 79. | electromagnetic propulsion |
| 电磁推进 |
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| 80. | intermittent propulsion |
| 断续推进 |
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