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| 动力活塞 | |||
| 发动机活塞; 引擎活塞 | |||
| engine piston: 60 phrases in 13 subjects |
| Automobiles | 16 |
| Aviation | 5 |
| Compressors | 1 |
| Ecology | 1 |
| Electric machinery | 1 |
| General | 1 |
| Mechanics | 1 |
| Metallurgy | 1 |
| Nautical | 2 |
| Rail transport | 1 |
| Skydiving | 1 |
| Space | 1 |
| Technology | 28 |
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