500 kV斗山变电站
500 kV Doushan Substation
500kV斗山变电站
500 kV Doushan Substation
城区变电站
urban substation
Substation in city proper
变电站电气设备
substation electrical equipment
变电站电气主接线
substation bus arrangement
变电站电压无功控制
voltage quality control(VQC) of substation
电力系统配电变电站
power system distributed substation
大朝山电站
Power Station in Dachaoshan
山地变电站
mountain electric substation
天山山区
tianshan mountains
Tianshan mountainous area
Tianshan mountain areas
tianshan mountainous region
tianshan mountainous
燕山山区
Yanshan mountain area
Yanshan mountainous region