ventilation

名词 ventilation:

1. the act of supplying fresh air and getting rid of foul air
   同义词：airing
2. a mechanical system in a building that provides fresh air
   同义词：ventilation system, ventilating system
3. free and open discussion of (or debate on) some question of public interest
   同义词：public discussion
4. the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation
   同义词：breathing, external respiration, respiration

1. Do not place the product in a separate enclosure unless proper ventilation are provided.
   除非通风良好，不要把产品放在独立的封闭装置中。
2. They increased ventilation by opening the top center part of the carriage window.
   他们把车厢上面的中央部分打开以增进空气的流通。
3. The ventilation isn't working.
   通风设备出故障了。