For example, the central tower will serve as a kind of chimney that keeps air flowing to provide natural ventilation.

例如，塔中心设计成一种烟囱的样式，保证空气流通，用以供给自然通风。

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A handful of salt thrown onto the flames in your fireplace will not only produce pretty, vivid yellow flames, it will help loosen soot in the chimney, preventing chimney fires and improving air flow.

把一小撮的盐投入壁炉中燃烧的火苗上，不仅能制造出相当可爱的黄色火焰，也可使烟囱里的灰轻易掉下来，预防烟囱着火并改善气体流通。

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All this carbon dioxide will have to be squirrelled away in the same way carbon dioxide scrubbed from the air (or a power station’s chimney) would.

所以我们不得不过滤空气（或是发电厂烟囱排放的烟尘）中的二氧化碳，将它们贮藏起来。

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Noting that warm air moved up a chimney (which were another Medieval innovation), larger Medieval kitchens had fans installed in the chimney to automatically turn spits by use of a gearing system.

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His scheme replaces the chimney with a tornado-like vortex of spinning air, which could extend several kilometres into the atmosphere.

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