Mean time to failure is the average continuously operational period — i.e. the average period between the end of one failure and the beginning of the next.
平均失效到达时间是连续运行期间的平均值——也就是说，在结束一个失效和开始另外一个之间的平均周期。
The goal of any good systems administrator is to avoid being a victim of the mean time between failure value of hardware and find a way to mitigate the risk of a disk failure.
所有好的系统管理员的目标是避免成为硬件平均故障间隔时间的受害者，并找到一种方式来减轻磁盘故障的风险。
Multi-factors defined in CC are replaced by MTSF(mean time to security failure) as the metric of vulnerability complexity.
把CC评估标准定义的多个变量映射为以平均安全时间为参数的度量指标。
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