备件消耗量
备件消耗量-
同时假设备件消耗量服从泊松分布、定货延迟时间为常数、并考虑单一品种的存贮模型等。
Meanwhile supposing the consumption is subject to poisson distribution , ordering postpone time as a constant , and single article in stock .
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大中型制造企业由于拥有大量的机器设备，所以属于非生产原料的零备件消耗量很大，且零备件需求规律性差，随机性强，很难预测。
Holding a large quantity of equipments , middle and large sized manufacturers belong to the type that requires a considerable consumption of non-producing materials , whose demands on spare parts are not that regular and often unpredictable .