... fish jelly product 鱼胶制品{鱼产品} fish ladder; fishway 鱼梯 fish lamp; fishing lamp 双鱼灯 ...
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鳗鱼梯 eel pass
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一些大坝和这两座埃尔瓦河大坝一样在建造的时候缺乏鱼梯设计,就是说它们完全阻碍了鱼群的洄游。
Some, like the two Elwha dams, were built without fish ladders, meaning they serve as completely impenetrable barriers to fish migrations.
youdao
鱼梯是帮助鱼儿上溯回游的一种构造,有些鱼儿喜欢在水温较低的上游地区产卵繁殖,因此只要到了繁殖季节,鱼儿便纷纷上溯回游产卵。
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