通过分析车站作业过程和调车机的解编特性，建立调车机车运用问题的图论模型，运用构造方法给出调车机运用问题的使用算法。

Graph theory model of using locative is set up by analyzing the characteristics of using locative. Then algorithm of it is given by construction method.

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采用网络理论构造了平行流水作业的非连接图模型，提出了采用蚁群算法求解平行流水作业计划问题，以及求解过程中可行路径表的建立方法。

This concept is the integration of identical parallel machine scheduling with flow shop scheduling. The solution to IFSP is a non- polynomial computation of time problem.

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