Transform the former no -sluice wide-top weir into sluice-controlled hump weir can make the dispatching more easy and increase the flood discharge capability.
将原无闸控制的宽顶堰改为有闸控制的驼蜂堰,不仅运行调度灵活,而且增大泄洪能力;
Fisherman Ray Turner hand-built the V-shaped stone overflow dam, or weir, in the East Branch of the Delaware River in New York; its walls funnel eels into a wooden collecting rack.
渔民雷·特纳在纽约德拉瓦河东支流手工建造了这个V字形石头溢流堰,或称鱼梁。从它的墙壁漏过的鳗鱼进入木制的收集架内。
A water wheel, turned by water flowing over a weir, furnishes a good example of potential energy being turned into useful mechanical energy.
由流水过坝转动的水轮提供一个说明位能正在转变成有用的机械能的例子。
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