The management of the inherent complex dependency relationship is a necessary and important job for the running of discrete manufacturing system.

对与生俱来的高度复杂的依赖关系进行管理是管理控制离散制造系统运行所必需的一项重要工作。

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As a timed event graph (TEG) only having narrow modeling range, a hybrid event graph (HEG) was put forward to describe discrete and continuous events in a manufacturing system.

针对时间事件图(teg)建模范围窄的问题，提出了一种用来描述制造系统中的离散和连续事件的混杂事件图(HEG)。

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Secondly, it focuses on the design of algorithms steps of four key technical problems in the discrete manufacturing enterprise ERP system.

其次，重点阐述了离散型生产制造企业ERP四个关键技术难题的设计思想和算法步骤。

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