在软件生存期中，有效地控制影响软件可靠性的各种因素，才能提高软件可靠性，实现软件产品的无故障运行。
In the software life cycle, validly controlling every kind of affect factor of software reliability can increase the software reliability and realize the software to run without fault.
加强完善了网络的安全性，增加了网络的无故障运行时间；简化了多厂商混合网络的管理，并且能够有效地控制网上运行成本。
This management can improve the running quality of VOD system, enhance the security of network, increase the time of normal running and control the running costing.
对采用继电器控制系统进行控制的某实验室船舶燃油辅助锅炉，采用计数法进行可靠性评估，得出控制电路的平均无故障时间。
The reliability lab ship fuel oil donkey boiler controlled by relay control system is evaluated using counting method, and mean time to failure (MTTF) of the control circuit is educed.
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