The cleaning personnel calls the phone system from the room.

清扫人员从房间中呼叫电话系统。

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In this paper, the characteristic of cleaning room in the electronic industry was expounded, dry coil and FFU cleaning air conditioning system was introduced, and air conditioning course was analyzed.

本文阐述了电子行业洁净室空调的特点，介绍了目前电子行业常采用的干盘管- FFU洁净空调系统并对该系统的空气处理过程进行了分析。

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Keeping air conditioning system, cleaning room, modulating indoor relative humidity are also important.

注意调整空调房间的室内湿度和保持室内清洁。

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Wollheim describes her extraordinary system of cleaning the house room by room daily, moving all the furniture to the center of the room, then dusting, sweeping and vacuuming.

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