短語(yǔ)詞組短語(yǔ)relief control valve 泄壓控制閥relief pressure valve 卸壓閥;減壓閥air relief inlet valve 排氣閥relief pressure valve cartridge 減壓閥芯relief -valve opening 釋放閥啟開(kāi)RELIEF -VALVE 泄荷閥pressure relief safety valve 泄壓安全閥relief f valve 安全閥pressure -relief gate valve 釋壓閥門(mén) 返回 relief valve