Product demand models the bridge that linking the market, customers and product development process.
产品需求分析是产品设计的第一步，是连接市场、用户和产品开发过程的桥梁。
The extensive research for inventory control models with time-varying demand.
时变需求库存控制模型的扩展研究。
The extensive research for inventory control models with time-varying demand.
时变需求库存控制模型的扩展研究。
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