...动排序的常用工具是网络图，图-4.23a 显示了两种最常用的网络图的表达方法： 优先图法（PDM，Precedence Diagramming Method），又被称为单代号网络图。
基于4个网页-相关网页
采用深度优先搜索法，文章首次提出了在搜索过程中采用标记距离的算法，有效地求解复杂网络和图的最短距离问题。
The shortest path problem in complex networks and graphs can be easily solved by labeling the distance between current point and start point during depth- first- search.
对于进度风险分析，可用优先顺序图法(PDM)进度。
The progress of risk analysis can be used in the order of priority Library (PDM) progress.
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