When purchasing a piece of hardware, consider its meantimebetweenfailures (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。
2
The paper introduces a practical method to calculate the meantimebetweenfailures (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。
3
Theoretic calculations show that with redundancy control the mean-time-between-failures (MTBF) of the vacuum system is doubled at least.