Traditional deterministic economic Lot-Size models assume that the demand rate is a constant, that the order cost is inflexible during every order cycle.
传统的确定性经济批量模型通常都假定需求率是常数，且每周期的相关费用是固定不变的。
The optimal order time and economic lot-size problem with the linearly time-varying fuzzy demand.
模糊线性时变需求下最优订购时间和最优经济批量的确定问题。
In the traditional economic lot-size models, there exists a common assumption that the holding cost is fixed and inflexible during every order cycle.
传统的经济批量模型通常都假定物品的库存费用是固定不变的。
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