To analyze information features and element characteristic of operational and support cost of equipment, a cost analysis model is established.
通过分析装备使用保障费用的信息特点及其要素特征，建立了费用分析模型。
The fourth part, on the closed-loop supply chain system cost analysis model and conducted simulation experiments, analysis of some key parameters on the system.
第四部分，对闭环供应链系统的成本模型进行分析，并进行了模拟实验，分析了部分关键参数对整个系统的影响。
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