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| 发原动机 | |||
| power engine: 73 phrases in 9 subjects |
| Automobiles | 28 |
| Aviation | 10 |
| Electric machinery | 2 |
| Engineering geology | 1 |
| General | 1 |
| Nautical | 8 |
| Shipbuilding | 8 |
| Space | 4 |
| Technology | 11 |
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