文中采用基于约束的知识库系统及遗传算法对钢铁企业生产的合同归并、轧钢计划、连铸计划、转炉计划进行数学建模，算法设计和实现。
The thesis adopts repository system based on restrict theory and genetic arithmetic, models, arithmetic design and implement for order merger, roll plan, cast plan, converter plan of steal enterprise.
基于对钢铁企业M TO管理模式下合同计划的编制策略、约束条件和优化目标的研究，建立了合同计划优化模型。
An order planning optimizing model is formulated based on studies on the order planning strategies, (constraints) and objectives under make-to-order (MTO) management mode in steel plant.
首先，提出了基于时间约束的部分-全局计划(TPGP)，实现了全局约束。
First of all, presents Temporal Partial-Global Planning (TPGP) based on the part with time constraint, and accomplish global constraint.
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