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。

youdao

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。

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The entire sequence where Obi-Wan and Even Piell try to sneak around the landing platform when they emerge from the ventilation duct was originally shot on top of the citadel tower.

在欧比万和埃文·皮尔逃离通风管后，他们试图偷偷绕过停机坪的这整场戏原本是在堡垒高塔的顶端拍摄的。

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But the alleyway is open although the ventilation duct has long been switched off.

BBC: Forum 28 in Barrow

The firm has taken samples from the ventilation duct and access to the ceiling voids has now been prohibited unless a pre-assessment has been carried out by a qualified consultant.

BBC: Asbestos-riddled Rhyl hospital could be revamped

The silver cylinder at the top is actually a small power generating device that converts micro-vibrations into usable energy, so stick one of these on, say, a ventilation duct and you should just about get enough juice to power a calculator or even an LED.

ENGADGET: Mitsumi exhibits micro-vibration power generator and batteryless RF switch (video)