短语词组短语azeotropic c mixture refrigerant 共沸溶液制冷剂Near azeotropic mixture refrigerant 近共沸制冷剂non -azeotropic mixture refrigerant [制冷]非共沸溶液制冷剂Near -azeotropic refrigerant mixture 近共沸混合物 返回 azeotropic mixture refrigerant