back-siphonage backflow的意思|示意
美 / /
英 / /
反虹吸回流
back-siphonage backflow的网络常见释义
虹吸回流 ... 回流backflow, back siphonage 虹吸回流back-siphonage backflow 背压回流back pressure backflow ...
back-siphonage backflow相关短语
1、 Back Siphonage Backflow Vacuum Breakers 倒虹吸回流真空关闭阀