短語(yǔ)詞組短語(yǔ)air shut -off cock 空氣截流旋塞fluid shut -off cock 油液應(yīng)急關(guān)斷開(kāi)關(guān)engine fire shut -off cock 發(fā)電機(jī)滅火開(kāi)關(guān)fuel emergency shut -off cock 燃料應(yīng)急關(guān)斷開(kāi)關(guān) 返回 shut-off cock