The traditional method for calculating inventory period is not applicable for hybrid stock of multi-products.
传统的库存周期计算方法对多品种多批次的混合存货并不适用。
The dummy period method is applied to control the quality of crude inventory in the last period.
采用虚拟周期方法解决原油期末库存质量控制问题；
The dummy period method is applied to control the quality of crude inventory in the last period.
采用虚拟周期方法解决原油期末库存质量控制问题；
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