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| 膨胀机 | |||
| 往复膨胀机 | |||
| 膨胀式致冷发动机 | |||
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expansion engine : 24 phrases in 5 subjects |
| General | 1 |
| Mechanics | 1 |
| Nautical | 4 |
| Shipbuilding | 2 |
| Technology | 16 |
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