Based on the analysis of business needs, functional requirements, data demands and performance requirements this paper presents data flow diagram of the system.
本文在对业务需求、功能需求、数据需求和性能需求进行分析的基础上给出了系统的数据流图。
The characteristics of the microstructure on super low carbon steel powder has been studied, and the crystallization performance of slag analysed by phase diagram.
研究了超低碳钢保护渣的显微组织结构特征,并根据相图分析了熔渣的结晶性能。
Combustion analysis by using observed indicated diagram is of great importance for engine performance analysis and evaluation.
由测得的发动机示功图进行燃烧分析,对于分析和评估发动机性能具有十分重要的意义。
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