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.
本文设计了一种发动机排放测量全流稀释系统，可以满足车用发动机排放测量需要。
This paper describes the design of a total flow dilution system for the engine particle emission measurement. This system meets the requirement of vehicle engine emission measurement.
本文结合上海局安监室的实际需求，设计并实现了基于工作流技术的铁路全管理信息系统。
In this paper, to meet the actual demand from Shanghai Railway Bureau safety supervision department, the safety management information system based on workflow is designed and realized.
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