短語(yǔ)詞組短語(yǔ)pump assembly efficiency 泵裝置效率pump volumetric efficiency 泵容積效率pump mechanical efficiency 鉆井泵效率pump station efficiency 泵站效率pump package efficiency 泵組效率pump hydraulic efficiency 水泵水力效率pump blade efficiency 水泵葉片效率pump test efficiency 泵測(cè)試效率 返回 pump efficiency