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| sharp crest weir | |||
| sharp crested weir | |||
| sharp-crested weir; sharp-edged weir; finite-edge weir; knife-edge weir | |||
| knife-edged weir | |||
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锐缘堰 : 7 phrases in 2 subjects |
| Hydroelectric power stations | 2 |
| Technology | 5 |
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