dirty air

英 美
  • 污浊空气
  • air n.空气;天空;空中;感觉;神态;曲调;装腔作势v.晾干;使通风;广播
  • dirty adj.脏的;肮脏的;下流的;卑鄙的;腐败的;不正当的v.弄脏;玷污
    1. Heating is concerned with the supply of fresh air and removal of air that is vitiated, polluted, or contaminated.
      供暖系统参与了新鲜空气的供给和污浊空气的排除。