The filter must be set up in ventilation system of the production and disposal of dangerous chemicals and the design and resistance determination methods of filter with toxic gas are also introduced.
在危险化学品生产和销毁工厂的通风系统中一定要设置滤毒装置，介绍了滤毒过滤器的设计与阻力确定方法。
Presents the design of cold and heat sources and water system, the air conditioning and ventilation design of the TV technology machine rooms, UPS rooms and face lights room in theater.
介绍了北京电视中心暖通空调设计中空调冷热源及水系统，电视工艺机房、UPS室、剧场面光桥空调通风的设计方案。
The paper discusses some common problems in the engineering design of the classification of air-conditioner system and smoke ventilation system as well as the set up of the fire valve.
本文对暖通设计中通风空调及排烟系统的划分、防火阀的设置等工程设计中常见的问题进行了探讨。
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