止回閥 return flow solenoid valve: 回流電磁閥return valve: 回流閥; 回路閥; 回水閥valve return: 氣門回程return flow: 回歸水流; 逆流回流flow valve: 流量閥; 流量開關(guān); 油井產(chǎn)量調(diào)節(jié)閥下載手機詞典可隨時隨地查詞查翻譯