fish ladder
柯林斯词典
1. N a row of ascending pools or weirs connected by short falls to allow fish to pass barrages or dams (使鱼类游过障碍或水坝而建造的)鱼梯
返回 fish ladder
1. N a row of ascending pools or weirs connected by short falls to allow fish to pass barrages or dams (使鱼类游过障碍或水坝而建造的)鱼梯