ventilation door

基本解释

The paper introduced a new developed long distance control system for ventilation door in underground mine.
介绍一种新研制的煤矿井下自动风门远程控制系统。
The filming of the machine room door ventilation grille is to get the sound of the powertrain inside, but nothing can be heard from this.
当中拍摄机房门的通风格栅，目的是要拮取里面驱动机芯的声音，但最终并不能由此听到任何有关的声音。
wowviewer.com
The novel ventilation door not only can be opened in emergency, but also is free from damaging the functions of the original ventilation door.
本实用新型不仅能在紧急情况下，快速打开，而且不会破坏原有风门的功能。
ip.com

Willingham had fled out the front door, and the fire simply followed the ventilation path, toward the opening.
NEWYORKER: Trial by Fire