fish ladder (overfall type fish pass)
溢劣
overfall weir
暂无补充释义。
overfall weir
暂无补充释义。
fish ladder (overfall type fish pass)
bye-channel【水利】;overflow passage【水利】;overfall【水利】
overfall dam【水利】
overfall dam【水利】;overflow dam【水利】;spillway dam【水利】
overfall
overfall
overfall dam