具有反虹吸功能,可用于饮用水软管连接到软管螺纹水龙头的场合.Provides back siphonage protection for portable hoses connected to hose thread faucets.系列757, 757N可以安装在持续压力应用中,并且可能与反压力和反虹吸相关.Series 757, 757 N be installed under continuous pressure and be ...

“反虹吸”的英语可以翻译为：acksiphonage ...