The paper takes the"total-sub-total"model as the framework for thinking.

本文以“总、分、总”模式为致思结构。

youdao

Currently, in the actual production, MRP system is calculated on a time span through sub-total demand and net demand, and to express the demand for materials with the intermittent time series.

目前，在生产实际中，MRP系统是通过计算按时间分段的总需求和净需求，并以间断的时间序列来表达对物料的需求。

youdao

Currently, in the actual production, MRP system is calculated on a time span through sub-total demand and net demand, and to express the demand for materials with the intermittent time series.

目前，在生产实际中，MRP系统是通过计算按时间分段的总需求和净需求，并以间断的时间序列来表达对物料的需求。

youdao