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| 螺旋桨式叶轮 (机); 螺旋桨式涡轮 (机); 螺旋式涡轮机; 螺旋桨式水轮机; 旋桨式水轮机 | |||
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| 推进式水轮机 | |||
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propeller-type turbine : 6 phrases in 3 subjects |
| Electronics | 1 |
| Hydroelectric power stations | 2 |
| Technology | 3 |
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