direct current circuit meaning in Chinese

直羚路
直流电路

Moreover , an improved method is proposed for the phase current reconfiguration on the basis of the direct current circuit
提出了一种改进的基于直流回路母线电流的相电流、相电压重构方法。
Apparatus for connection to private circuits run by certain public telecommunication operators - specification for apparatus for connection to direct current circuits
英国通信网家用线路连接设备.第3部分:直流电路连接装置规范