The supplier and the seller does not permit the stockout, the goods demand is the periodic demand, the supplier orders to the exterior supplier, the delivery cycle is a constant;
供
和销售都不允许缺货，物品需求为
性需求，供
外部供订货，交付
常数；
The supplier and the seller does not permit the stockout, the goods demand is the periodic demand, the supplier orders to the exterior supplier, the delivery cycle is a constant;
供和销售都不允许缺货，物品需求为性需求，供外部供订货，交付常数；
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