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cylindrical barrage
hydroel.st. 圆筒形坝
tech. 圆筒式闸坝; 滚筒式闸坝; 滚筒式坝闸; 带有圆筒形闸门的活动坝
cylindric barrage
hydroel.st. 圆筒形坝
tech. 圆筒式闸坝; 滚筒式闸坝; 滚筒式坝闸; 带有圆筒形闸门的活动坝