backflow preventer meaning in English
防止回流设施
回流防止器
Examples
- Reduced pressure detector assembly backflow preventer
减压检测器组合防回流装置 - Four required per backflow preventer
每个防回流阀需要四个。 - Laboratory faucet backflow preventer
实验室旋塞防回流装置 - For use with backflow preventer test cocks to protect from damage
用于防回流阀测试旋塞，防止受到破坏。 - Installing a backflow preventer in a pit or vault is not recommended
不建议在坑内或拱顶内安装防回流阀。