单词	back siphonage preventer
释义	back siphonage preventer vacuum breaker vacuum breaker A backflow preventer which prevents a vacuum in a water-supply system from causing backflow.
随便看	znpsm znq znr zns znsc znse znsm znspca znt zntb zntha znthg zntk zntlb zntu znu znut znw znwc znwl zny znz zo zo- zo-1

英语词典包含2567994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。