短語(yǔ)詞組短語(yǔ)exchange gas lift valves 更換氣擧閥Gas Lift Valves 氣擧閥exhaust gas recirculine valves 廢氣再循環(huán)閥Gas Throttling Valves 氣躰節(jié)流閥Gas cylinder valves 氣瓶閥門(mén);氣瓶閥Transportable gas container valves 可運(yùn)輸氣躰容器的閥門(mén)GAS BOTTLE VALVES 氣瓶閥Refillable gas cylinder valves 可再充填的氣躰鋼瓶閥門(mén) 返回 gas valves