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| 引水渠渠首; 取水闸首 | |||
| 引水渠首; 拱顶石饰; 进水渠首; 取水首部 | |||
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| 入口压头 | |||
| 进口压头; 吸入压头 | |||
| 取水头部 | |||
| 吸入高度; 进风压头; 引水渠首; 渠首工程 | |||
| intake heading: 2 phrases in 2 subjects |
| Automobiles | 1 |
| Technology | 1 |
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