back pressure valve
短语词组
- back -pressure valve 止回阀;[油气]回压阀;单向阀;背压调节阀
- angle back -pressure valve 背压角阀;违压角阀;负压角阀
- dry back -pressure valve 干式布袋滤尘器
- e back -pressure valve 背压角阀
- hydraulic back -pressure valve 液压止回阀;水压逆止阀
- hydraulic c back -pressure valve 液压止回阀
- angle e back -pressure valve 背压角阀
- back pressure relief valve 背压安全阀
- shuttle back pressure valve 梭式止回阀 返回 back pressure valve