These early MRP and ERP systems were mainframe based systems.
这些早期的MRP和ERP是基于大型主机的系统。
If a hot job comes in the door, the software looks at the existing schedule in the MRP or ERP system and determines which parts need to be produced when.
如果来了一个紧急任务，软件将检查MRP和ERP中已有的生产计划，决定哪些零件需要立即生产，不能耽误。
How do MRP (" Material Requirements Planning "), MRPII (" Manufacturing Resources Planning "), and ERP differ? To what degree do they address the problems of their respective "predecessors"?
物料需求规划，MRPII制造资源规划，ERP之间的差别在哪里？他们凸显他们各自的理论前身所存在的问题的程度有多少？
Based on production planning and relevant WOs to determine according material requirement plans through calculation by running MRP module of ERP.
根据生产计划，生产任务单进行物料需求MRP的运算与采购进度的跟进协调；
Based on production planning and relevant WOs to determine according material requirement plans through calculation by running MRP module of ERP.
根据生产计划，生产任务单进行物料需求MRP的运算与采购进度的跟进协调；
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