The price-break model is instructed and then optimal order quantities are set up for the critical materials.Therefore, the lot size issues are fixed for EAI accordingly.

• 然后，构建数量折扣订货模型，最后，采用此模型为流量仪的重要物料找到最小成本订货批量，从而解决了影响EAI公司采购成本控制的采购批量问题。