然后，对模型进行求解，以确定最佳订货点和最佳订货批量，实现年库存总成本最小为目标。

Then, the model is solved to determine the optimal order point and order quantity, and also the minimum total annual cost.

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对价值高的慢速流动备件，如何确定其最佳再订货时间和订货批量，这是目前困扰企业的一个急需解决的问题。

How to optimize the reorder point and order quantity is a difficult problem for slow moving spare parts with high cost and long storage time.

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