短語(yǔ)詞組短語(yǔ)convection box type heater 菸氣下行式對(duì)流箱式爐down -convection box type heater 菸氣下行式對(duì)流箱式爐;菸道氣下行對(duì)流箱式加熱爐radiant and convection type heater 輻射對(duì)流型爐natural -convection type air heater 自然對(duì)流型空氣加熱器 返回 convection type heater