The common reliability targets are reliability probability and m 'ttf (Mean Time To Failures). MTTF features directly and distinctly, so it is more convenient.
工程中常用的可靠性指标有可靠度和平均寿命，平均寿命指标直观、物理概念清晰，使用更加方便。
If you know the mean time between failures and the mean time to recovery, e.g. for the hardware, use the calculations in this section.
如果知道失效之间的平均时间和平均恢复时间(例如对于硬件)，则使用这一部分中的计算方法。
The paper introduces a practical method to calculate the mean time between failures (MTBF) of ac servo controllers, using the components counting prediction method.
介绍了采用元器件计数预计法的伺服驱动控制的平均故障间隔时间(MTBF)实用计算方法。
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