This duct tape fan decided to take the term 'ceiling fan' a bit too literally.

这一胶带黏贴的风扇还真让“天花板上的电扇”一词按字面理解了。

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An intense field dielectric air filtration system includes a perimeter frame for wall or ceiling mounting at the inlet of a return air duct for an air conditioning apparatus.

一种强场电介质空气过滤系统包括安装在空调装置的回风管的入口处的用于壁或天花板的周界框架。

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The extraction fan 1HU removes air from the lavatories and the galleys through a duct which is installed above the cabin ceiling.

抽气风扇通过安装在客舱天花板上的管道，把厕所和厨房的空气抽出来。

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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