基本释义:

弹簧球式止回阀

网络释义

1)spring ball check valve,弹簧球式止回阀

2)check valve spring,止回阀弹簧

3)spring-loaded check valve,弹簧加载止回阀

4)recoil type check valve,回弹式止回阀

5)ball-and-spring valve,弹簧球阀

6)ball check valve,落球式止回阀