超级电容直流操作电源
DC operating power supply with supercapacitor
低压直流电源设备
low-voltage DC power equipment
电力直流操作电源
electric power DC operating power supply
直流操作电源
DC operating power supply
DC operation power supply system
direct current operation power supply
operation direct current
DC operating power source
直流电源设备
DC power supply equipment
数控直流电流源
Digital controlled DC current source
直流电流-电压特性
DC current-voltage characteristics
直流电源电路
Direct current of stable voltage circuit
3路输出直流-直流变换器
three output DC-DC converter
变压器中性点直流电流
transformer neutral DC current
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