求翻译：可用性是指在某特定时间段内，系统能正常工作的时间占总时间的百分比。通常用平均修复时间（MTTR）表示。故障次数少但故障后修复时间长，或故障次数多每次故障修复时间短，这两种情况都是用户无法接受的。最理想的情况是MTBF值大，而MTTR值小，即可靠性高，一般不出现故障，一旦出现故障能马上修复是什么意思？

Availability refers to the percentage of total time at a specific time period, the system can work properly. Usually the mean time to repair (MTTR). The number of failures is small but after a fault repair for a long time, or failure more times each fault repair time is short, both cases users can n

Availability refers to a specific time period, the system will work the total time of 100 minutes. Usually the average time to repair (MTTR). Number of failures, but after a long time to fix, or how many times each fault is repaired over time, both of which are not acceptable to the user. The ideal

The usability is refers in some specific time section, the system can the normal work time account for total time the percentage.Usually indicated with mean time to repair (MTTR).But after the breakdown number of times few the breakdown the time to repair is long, or the breakdown number of times ma

Availability refers to a specific time period, the system to normal working hours as percentage of total time. Usually with a mean time to repair (MTTR). Fault fault repair time of fewer but longer, or fault number each time the short failover time, both of which are unacceptable to the user. MTBF v

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