Convex function of demand, convex distribution of price and an optimal model for coexistence of multi-prices are established.

建立了商品销售中的凸需求函数，凸分布和多种价格并存的优化模型。

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According to the practice demand, executes the basic function of transportation, inventory, stowage, portage, package, circulate manufactures distribution and information treatment to organic joint.

根据实际需要，将运输、储存、装卸、搬运、包装、流通加工、配送和信息处理等基本功能实施有机结合。

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This system was programmed by VB6.0, and provided every demand and service function through friendly interface. It had some instruction to local agro-production and the reasonable crop distribution.

系统采用VB 6.0语言编程，通过友好的界面，实现各种查询及服务功能，对当地合理布局农作物品种有较好指导作用。

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