interior packaging造句

• The clean operation area and standard clean operation area should be installed the air regulating equipment ; when regulate air , enter or exhaust air or use electric fan , the air must be flowed from high clean area to low clean area to prevent the touch surface of food and interior package materials were polluted
  清洁及准清洁作业区应装设空气调节设备；厂房内之空气调节、进排气或使用风扇时，其空气流向应控制由高清洁区流向低清洁区，以防止食品接触面及内包装材料可能遭受之污染。