Failure rate and average repair time of input-bus unit were calculated by state Spaces method. Power reliability indices of whole systems were computed by min-cut method.

该方法用状态空间法求解输入母线单元失效频率和平均修复时间，用最小割集法计算整个系统的供电可靠性指标。

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It hopes to repair an average 3, 000 potholes a month during spring.

BBC: Oxford

Highway repair teams fixed more than 1, 400 potholes between 1 and 10 April and say they are on target to repair an average 3, 000 a month in spring.

BBC: Pothole

The average chance of a hernia recurrence after repair at Shouldice is less than 1%.

FORBES: Magazine Article