spring-loaded check valve造句

例句与造句

1. To avoid this discharge , install a spring - loaded check valve ahead of the backflow assembly to " lock - in " the downstream pressure
   如果放置在坑内，则应该采取措施使得排放总是在地面上，或对于坑内排放，要确保在安全阀下方配置一个适当的气隙。
2. It's difficult to find spring-loaded check valve in a sentence. 用spring-loaded check valve造句挺难的