畅通可靠度是在考虑交通供给和交通需求的随机变化特性的基础上，借鉴网络可靠性分析方法，提出的概率型指标。
On the basis of randomness analysis of traffic demand and supply and the reliability analysis of network, the concept of unblocked reliability was presented.
利用概率分析和随机模型的密度演化方法，导出了系统的一些新的可靠性指标和最优检测策略。
The new system reliability indices and the optimal inspection policy are obtained by using probability analysis and the density evolution method in stochastic.
同时，还介绍了确定型和随机型两类供应链模型，并结合供应链设计指标的要求，分析了这些模型的不足之处。
At the same time, deterministic and stochastic supply chain models are introduced and the shortcomings of these models are pointed out, based on the measurements of supply chain designing.
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