To speed up the generating procedure of work order and guarantee the operation safety, a rule-based algorithm for the automatic generation of work order description language is presented.
为了加快工作票的生成速度和保证操作过程的安全性，提出了一种基于规则的工作票描述语言自动生成算法。
The transition step rule of price coloured Petri net is given, and the economic-marking is defined, then the minimum costs generation algorithm is introduced.
其中讨论了价格着色网的变迁步规则，提出了价格着色网中的标识——经济标识的定义，并有针对性地提出了最小成本构造算法。
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