A model of the multi-period order quantity of two parties in the supply chain(SC) was established, discussing the multi-period order quantity in the two-level SC.

建立了供需双方多周期的最优订货批量模型，讨论了随机需求下两级供应链中供应双方多周期的生产和订货批量问题。

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So how to make decision of the order batch, order quantity, order period of the materials according to the production need direct influences on the economic benefit.

如何根据生产需要对材料的订货批量、订货批次及订货周期进行决策，将影响到企业的产品成本和经济效益。

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In this paper, a class of discrete deterministic zero lead time economic order quantity(EOQ) inventory models with limited period is studied.

本文研究了水泥这类具有有限使用期的物资在施工中的需求变化规律，并提出了相应的最优订货策略。

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