而原材料有的是采用经济订货量(EOQ)采购，有的是采用JIT(及时)采购。

However, the study also shows that the raw materials can be purchased either using the JIT purchasing method or the traditional economic order quantity (EOQ) purchasing method.

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传统的企业库存管理侧重于优化单位个体的库存成本，从存储成本和订货成本出发确定经济订货量和订货点。

The traditional inventory management always focus on optimizing the inventory cost of the company itself. It makes its decision of order quantity according to its inventory cost and delivery cost.

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他表示，随着部分耐用品订货量开始见涨，美国在二季度的经济年增长率达到3.3％。

Orders for some durable goods are increasing, and the economy grew at an annual rate of 3.3 percent in the second quarter, he added.

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他表示，随着部分耐用品订货量开始见涨，美国在二季度的经济年增长率达到3.3％。

Orders for some durable goods are increasing, and the economy grew at an annual rate of 3.3 percent in the second quarter, he added.

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