The model first generates judge-array based on fuzzy optimal theory; and latter determines the optimal plan with the entropy weight decision-making method.

该模型首先根据模糊优选理论生成判断矩阵，后用熵权决策法确定优选方案。

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The results showed that the optimal policy could be exchanged among these time phases. The optimal model provided decision-making basis for the joint system.

结果表明，不同的时间段之间的最优决策可以相互转换，它为混合系统的库存控制提供了决策依据。

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Then study a supply chain repurchase lease model, conclude the lease situation than entering into a contract when both sides can reach their respective optimal decision-making.

随后又研究了供应链回购契约模型，通过算例分析得出，在缔结契约情形下比不缔结契约时双方都能达到各自的最优化决策。

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