inventory model的用法和样例：
例句
- It constructs an integrated inventory model including one supplier and one retailer.
摘要建构包含一个供应商和一个零售商的整合库存模型。 - After that, by decomposing the multi-item joint replenishment problem to multiple single item inventory models, we derive the expression of the retailer cost analytically.
随后将多产品联合订货问题分解成多个单产品的库存模型进行分析，给出了销售商总成本的解析表达式。
