signed digraph meaning in Chinese

符号双字音技术
符号有向图

As an extension of the traditional signed digraph model , layered digraph models make hazard and operability analysis more thorough and systematic , which improves the capability of the expert system in identification of the potential safety hazards in the chemical processes
它拓展了传统的有向图模型，从而使危险和可操作性分析的结果更全面、更系统，提高了专家系统全面挖掘化工过程中潜在的安全危险问题的能力。
To overcome the knowledge representation limitations of the traditional signed digraph model based expert systems for hazard and operability analysis , a novel layered digraph model for automating process hazard and operability analysis is proposed based on the graphical theory by decoupling the two dimensional signed digraph models in the three dimensional space
摘要为克服传统的基于有向图模型的危险和可操作性分析专家系统在知识表达方面的局限性，通过将二维的有向图模型在三维空间的解耦，采用图论的方法，提出了一个可以用于危险和可操作性分析自动化的有向架模型。