短語(yǔ)詞組短語(yǔ)box -type heater 箱式加熱器convection box type heater 煙氣下行式對(duì)流箱式爐vertical box type heater 立式箱型爐down -convection box type heater 煙氣下行式對(duì)流箱式爐;煙道氣下行對(duì)流箱式加熱爐 返回 box type heater