The technique and advantages of the decompress duct with polyfunction of ventilation and fumigation were introduced.
详细介绍了通风、熏蒸、多功能减压管的出入粮工艺及使用中的优点。
2
Ventilation system by sending the exhaust fan, duct, duct parts, muffler etc.
通风系统由送排风机、风道、风道部件、消声器等组成。
3
The entire sequence where Obi-Wan and Even Piell try to sneak around the landing platform when they emerge from the ventilationduct was originally shot on top of the citadel tower.