area substation

例句：

1. 1. The new area substation is expected to improve the efficiency of the entire power grid.
   新的区域变电站预计将提高整个电网的效率。
2. 2. The construction of the area substation has been completed ahead of schedule.
   区域变电站的建设提前完成。
3. 3. The area substation serves as a crucial link in the transmission and distribution of electricity.
   区域变电站是电力传输和分配中的关键节点。