短語(yǔ)詞組短語(yǔ)fire barrier cock 消防旋塞fire cock extinguishing system 消火栓滅火系統(tǒng)fire cock system 消火栓系統(tǒng)outdoor fire cock 室外消火栓fire cock button 消火栓按鈕engine fire shut -off cock 發(fā)電機(jī)滅火開(kāi)關(guān) 返回 fire cock