中文摘要：

将系统运行水平相同的状态归为一类,整个状态空间被划分为多个运行水平,建立了多运行水平马尔可夫可修系统模型并对其进行可靠性分析.运用生物药理学中的离子通道建模理论、Markov过程理论、矩阵分块方法给出度量该系统可靠性的几个新型指标：点可用度、区间可靠度、点区间混合可用度等.通过数值算例对所得结论进行了模拟实现,表明这些新的指标可以运用到马尔可夫可修系统模型中.

英文摘要：

States with same working level were regarded as one class,and whole state space was divided into several working levels.The model of Markov repairable system with multi-working levels was constructed,and the reliability about the system was also studied.In terms of ion channel modeling theory,Markov process theory and matrix partition method,some new reliability indices for the system were presented,i.e.,point availability,interval availability,point-interval-mixed availability and others.A numerical example was taken to simulate the contentions presented in the paper,and the simulation results show that these new indexes can be applied to Markov repairable system model.