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| 定中心角拱坝 | |||
| 恒角拱坝; 等角拱坝 | |||
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| 恒角拱坝; 定角拱坝; 等中心角拱坝 | |||
| 等角拱坝 | |||
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constant-angle arch dam : 2 phrases in 1 subject |
| Hydroelectric power stations | 2 |
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