低压直流电源设备
low-voltage DC power equipment
直流操作电源设备
DC operational 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
定直流电流控制
constant dc current control