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。
Across the country, we lose an average of seven billion gallons of drinking water a day to leaks-and we have an 800, 000-mile network of pipes that needs constant monitoring and repair.
美国全国每天因管道渗漏而损失的饮用水多达70亿加仑——而全国需要不断监测和维修的管道网络长达80万英里。
The average survival period of perforation repair, partial gastrectomy radical gastrectomy, is 9.5 months 14 months and 26.2 months respectively.
穿孔修补、姑息性切除和胃癌根治后平均生存期分别为9.5个月、14个月、26.2个月。
For a typical turbine, 20% of the downtime is due to gearbox failures, and an average gearbox failure takes about 256 hours to repair.
一个典型的风力发电机，20%的停车时间是由于变速箱的故障引起的，而平均每个变速箱的故障修理时间大概是256小时。
For a typical turbine, 20% of the downtime is due to gearbox failures, and an average gearbox failure takes about 256 hours to repair.
一个典型的风力发电机，20%的停车时间是由于变速箱的故障引起的，而平均每个变速箱的故障修理时间大概是256小时。
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