pressure vent valve的意思|示意

呼吸阀 聚丙烯环管反应器用安全阀 Safety Valve for PP Pipe Reactor 呼吸阀 Pressure Vent Valve 弹簧中启封闭式安全阀 Closed Spring Loaded Medium Lift Safety Valve ..

呼出阀 ... pressure variation 压力变动 pressure vent valve 呼出阀 pressure vessel 压力容器 ...

压力放空阀 ... pressure valve spring 限压阀弹簧 pressure vent valve 压力放空阀; 呼吸阀 pressure-actuated valve 压力作动阀 ...