考虑了一个具有重试，可选择到达，反馈，服务台可修的M/G/1排队系统。
Retrial, recurrent and option on arrival M/G/1 queueing system with repairable service station are studied.
在现有的计划更换模型的基础上，研究了一种备件有限及部件可修的更换策略问题。
Based on the present models of planned replacement, this paper studies on the problem of replacement policy with repairable units and limited spares.
考虑可修的串联系统，其单元产品在出现故障时，由于种种原因，故障不能得到及时维修，形成了一段保障延误时间。
Consider a repairable system in series in which, for some reasons, individual units cannot get repaired in time after failure occurs, thereby creating a period of delayed maintenance.
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