短語詞組短語convection furnace tube 對流爐管boiler convection tube bank 鍋爐管束convection tube bank 對流管束convection tube banks 對流管束convection tube bar of boiler 鍋爐管束forced convection inside a tube 管內(nèi)強(qiáng)制流動(dòng) 返回 convection tube