[網(wǎng)絡] 表面式經(jīng)濟器 economiser economizer surface: 經(jīng)濟器受熱面economiser: 節(jié)熱器economiser tube: 經(jīng)濟器管economiser tubes: 廢氣預熱器管fuel economiser: 燃料節(jié)省器下載手機詞典可隨時隨地查詞查翻譯