Also preferred is, that the elements of a filter unit are coupled like a star.

同样优选的是，滤波器单元的元件被耦合为星形。

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Presents the operating principle of some critical components such as chilled water mixing station, fan filter unit and dry cooling coil.

介绍了冷水混合站、风机过滤器及干盘管等关键设备的运行原理。

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However, ultraviolet system must install proper beforehand, a carbon filter unit alone to the taste and smell of the problem, will only in usable power supply.

不过，紫外线系统必须安装适当的预过滤，一碳单位单独解决的味道和气味问题，将只在有可用的电源。

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Peter Thorne, PhD, professor of toxicology at the University of Iowa College of Public Health, recommends vacuuming floors at least once a week with a unit that has a highly efficient filter.

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