首页  汉语词典  英英词典

单词	non-return
释义	non-return /ˈnɒnrɪtəːn / adjective Permitting the flow of air or liquid in one direction only: a non-return valve... If it is taking in air it means that the non-return valve is leaking and needs to be replaced. Self-sealing crashworthy fuel tanks have explosion suppression and non-return valves. A non-return flap is usually fitted to prevent cold air coming in.
随便看	pat someone on the back patsy patta pattable pattamar pattawalla Pattaya patte patte d'oie patten Patten, Christopher pattener patten-maker patten shoe patter patterer pattern patternable patternation pattern baldness pattern-bomb pattern book pattern card pattern congruity pattern cylinder

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。