transformer utilization factor

例句：

1. 1.The transformer utilization factor isan important indicator of power system efficiency.
   变压器利用率是衡量电力系统效率的重要指标。
2. 2. Thetransformer utilization factor has asignificant impact on the overall performance of thepower grid.
   变压器利用率对电网的整体性能有重大影响。
3. 3. To improve the efficiency of thepower grid, it is necessary to optimizethe transformer utilization factor.
   为了提高电网的效率，有必要优化变压器利用率。