中文摘要：

提出了在着色Petri网中运用标准元语言（SML）实现逻辑计算的方法。将着色Petri网与SML函数的组合体称为着色Petri网的运算单元，利用运算单元实现了调度系统NEH启发式算法。给出了使用着色Petri网组建流水车间（FlowShop）调度仿真系统的实例。

英文摘要：

A new method was introduced to simulate the logic algorithm in Petri net, which was based on coloured Petri net （CPN） and Standard ML （SML）. A component composed of CPN and SML was called calculation unit. The modeling steps for NEH heuristics algorithm were introduced in detail. An example was given to demonstrate the application of the calculation units.