800kV直流电子式电流互感器
800 kV DC electronic current transformer
d-q电流直接控制
d-q direct current control
UHP直流电弧炉
UHP direct current electric arc furnace
变压器中性点直流电流
transformer neutral DC current
表面直流电阻
DC surface contact resistance
不对称交流－直流电镀
asymmetric AC-DC electroplating
不对称交－直流电源
asymmetric alternating current-direct current powe
asymmetric alternating current-direct current power supply
asymmetry AC-DC power supply