本课题按照定容取样方法和质量平衡原理，自行设计、制造、调试了中国首套全流稀释风道颗粒物测试系统。
According to the principle of the mass balance and constant volume sampling, a full-flow dilution tunnel particle sampling system was designed and adjusted.
文章介绍了正压房间的系统组成及设计，着重阐述了正压控制系统和风道系统两部分的设计。
A system composition and design consideration of a pressurized room is present in this article and it is emphasized two parts: pressurized control system and air duct system for this room.
文章介绍了正压房间的系统组成及设计，着重阐述了正压控制系统和风道系统两部分的设计。
A system composition and design consideration of a pressurized room is present in this article and it is emphasized two parts: pressurized control system and air duct system for this room.
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