We did consider a heat recovery ventilation system, a box and pipes that bring in fresh air.
我们的确曾经考虑过热回收通风系统，用一个机箱和一些管道引入新鲜空气。
Presents general principles and forms for the design and selection of air-conditioning and ventilation system, involving kitchen air extraction and spot fresh air supply systems.
阐述了宾馆酒店厨房通风空调设计的一般原则及通风系统的采用形式，包括排风系统、岗位新风的设计。
The supply of fresh air in the existing air conditioning and ventilation system directly affects the working environment.
现有建筑物中央空调通风系统的新风供应情况，直接关系到人们的生活工作环境。
Firstly, system cooling load, ventilation flux and thermal and humid processing were calculated and its feasibility was showed from the temperature, humidity of indoor air and fresh air flux.
首先进行了系统的负荷、通风量及热湿处理计算，从室内空气温度、湿度和新风量三个方面说明其可行性。
These air holes can facilitate natural ventilation, provide optimal natural air conditioning system and keep air in pillow fresh and healthy.
这些孔可以可促进天然通风，提供最佳的天然空调系统，使枕头里面的空气保持新鲜和健康。
The fresh air system can exchange the outdoor and indoor air, ensure that the indoor air ventilation to improve room air quality.
新风系统将室外的新鲜空气和室内的空气进行交换，保证室内的通气，改善房间的空气质量。
The fresh air system can exchange the outdoor and indoor air, ensure that the indoor air ventilation to improve room air quality.
新风系统将室外的新鲜空气和室内的空气进行交换，保证室内的通气，改善房间的空气质量。
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