短語(yǔ)詞組短語(yǔ)essential chilled water system 重要冷凍水系統(tǒng)essential service water pump 重要廠用水泵essential service water 重要廠用水essential l water 組成水essential service water discharge canal 重要廠用水系統(tǒng)排水渠essential service water pumping station 事故用水泵站non -essential chilled water system 非重要冷凍水系統(tǒng) 返回 essential water