单词 | salmon ladder |
释义 | salmon ladder(also salmon leap) noun A series of natural steps in a cascade or steeply sloping riverbed, or a similar arrangement incorporated into a dam, allowing salmon to pass upstream.The musculature of salmon, after 30 seconds’ swimming flat-out up a salmon ladder or striving to jump a weir, has been reported to touch pH 6.0; warm-blooded animals cannot tolerate this value....
|
随便看 |
|
英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。