ventilation是什么意思 - ventilation中文意思和解释

ventilation基本解释 n,通风设备；空气流通,同近 ventilation相关例句和用法 This would solve the problem of ventilation, for if a train entered this tunnel, it would draw in fresh air behind it..这样就可以解决通风的问题，当火车进入隧道的时候...