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| 水力发电机 | |||
| 水轮发电机 | |||
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| 水力发电机; 水轮发电机 | |||
| hydro generator: 11 phrases in 5 subjects |
| Electric machinery | 2 |
| Electronics | 3 |
| Exhibitions | 1 |
| Hydroelectric power stations | 4 |
| Technology | 1 |
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