短語詞組短語surface economiser 表面式經(jīng)濟(jì)器Petrol economiser 省油器loop economiser 盤管式經(jīng)濟(jì)器fuel economiser 節(jié)油器;燃料節(jié)省器water economiser 給水節(jié)熱器continuous -loop economiser 盤管式經(jīng)濟(jì)器economiser economizer surface 經(jīng)濟(jì)器受熱面economiser economizer economiser 經(jīng)濟(jì)器 返回 economiser