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。
2
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。
3
Combustion analysis by using observed indicated diagram is of great importance for engine performance analysis and evaluation.