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| 通风压头 | |||
| 吸出水头 | |||
| 重力对流器高度 | |||
| 吸出落差; 尾水头; 通风气流压力; 吸水水头; 吸水扬程; 吸水头; 气压差; 输出水头 | |||
| draft head: 11 phrases in 4 subjects |
| Construction | 1 |
| Electronics | 3 |
| Hydroelectric power stations | 4 |
| Technology | 3 |
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