1)  check valve seat
止回阀座
2)  check valve
止回阀
1.
Manufacture of great size check valve body seal surface;
大口径止回阀阀体密封面加工
2.
Measure and analysis about the leakage rate in sealing test for metal-seated check valve covered in GB standard;
相关标准对金属密封副止回阀密封试验泄漏率的规定及分析
3.
The model and application of check valve in power plant;
电站止回阀的选型及应用
3)  check valve
止回阀组
4)  static reflected wave
静止回波
5)  oil check valve
油止回阀
6)  nonreturn flap
止回瓣
参考词条
补充资料：见止回阀
分子式：
CAS号：

性质：见不可逆转变 

说明：补充资料仅用于学习参考，请勿用于其它任何用途。