When purchasing a piece of hardware, consider its mean time between failures (MTBF), and stockpile reserves accordingly. Here are some rules of thumb.
在购买硬件时，要考虑它的平均故障间隔(MTBF)并相应地储备备用硬件。
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。
Theoretic calculations show that with redundancy control the mean-time-between-failures (MTBF) of the vacuum system is doubled at least.
通过计算，冗余控制可使整个负压系统的平均无故障工作时间至少增加一倍。
The mean time between failures (MTBF) for the controller of the system can be over 10 years.
系统用控制器平均无故障时间达到10年以上。
The mean time between failures (MTBF) for the controller of the system can be over 10 years.
系统用控制器平均无故障时间达到10年以上。
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