处理过的空气通过管道系统分布在房屋里。
The treated air through the duct system is distributed on the premises.
空气管道出口处负压现象的发现，打破了传统的空气管道终端压力分布理论，改变了人们长期形成的风机出口管道终端不会出现负压的观念。
The traditional pressure distribution theory in air pipeline has been smashed by discovery of vacuum phenomena in the outlet of air pipeline.
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