down-convection pipe still

英 美
  • 烟道气向下流动的管式炉
  • convection n.(热的)对流
  • down adv.向下prep.沿着...而下adj.向下的;消沉的;无礼的n.绒毛;汗毛v.击倒;打败;吞下;被抑制
  • pipe n.管子;烟斗;管乐器vt.以管输送;装管道;吹奏;尖声说;(为衣服等)滚边vi.吹奏管乐;尖叫
  • still adj.静止的;不动的;静寂的adv.更;仍然;静止地v.使...平静下来n.蒸馏器;寂静;定格照