静电式空气消毒洁净器
Air disinfection electrostatic cleaner
空气消毒洁净器
air disinfectioncleaning device
air disinfection-purifying device
Air disinfection cleaner
板式空气—空气热交换器
plate-type air-air heat exchanger
空气洁净度
cleanliness
air cleanliness
purification degree of air
空气洁净度等级
classifi cation of clean room
空气-空气后冷发动机
air-to-air aftercooled engine
空气-空气后冷发动机装置
air-to-air aftercooled engine installation