research on bill of material and material requirements planning in mrp system;
研究了提前期不确定情况下总装生产物料需求计划的优化问题。
order policy: this field determines how material requirements planning (mrp) plans orders for this item.
订货原则:这个参数定义mrp如何为零件建立计划订单。
it was studied that theory of material requirements planning and designed of material requirements planning system.
对物料需求计划的理论和方法进行研究,并对物料需求计划系统进行逻辑计划。