residual air volume

例句：

1. 1. The residual airvolume in the room is verylow.
   房间里的残余空气体积非常低。
2. 2. The residual air volume in the roomis very low, which affects the ventilation system.
   房间里的残余空气体积非常低，这影响了通风系统。
3. 3. Theresidual air volume in the room is verylow, which affects the ventilationsystem.
   房间里的残余空气体积非常低，这影响了通风系统。