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| 出水口; 斗门; 配水闸 | |||
| 门斗 | |||
| 放水门; 供料门; 配水闸 (门) | |||
| delivery gate: 5 phrases in 3 subjects |
| Hydraulics | 1 |
| Hydroelectric power stations | 2 |
| Technology | 2 |
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