... fixed-crest weir 固定堰顶式堰 crest of weir 堰口 height of crest over weir 堰上溢流液头 ...
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crest of the weir 堰顶
height of crest over weir 堰上溢流液头 ; 堰上液流高度
elevation of weir crest 堰顶高程
shape of weir crest 堰顶形状
length of weir crest 堰口长度
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