求翻译：设有相邻的停机风电机组N台，故障持续时间为T，选取将这N个故障风电机组周围的相邻的I台正常运行的风电机组作为参考机组，其中I>N；若在故障时间段内风电场监控系统为第i台风电机组记录了M个历史数据采样点，则Pmi为第i台风电机组在停机后风电场监控系统所记录的第m个输出功率值。是什么意思？

N units, down wind turbine has a neighboring fault duration t, select these n faults in wind turbine adjacent to the surrounding normal operation of the i-th wind turbine as a reference unit, which i> n; if In the fault period wind farm monitoring system for the i-th wind turbine recorded m histo

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Has adjacent of downtime wind electric unit n Taiwan, fault continued time for t, select will this n a fault wind electric unit around of adjacent of I Taiwan normal run of wind electric unit as reference unit, which I>N; if in fault time segment within wind electric field monitoring system for s