The connection of the outer bridge is suitable for ( ).
A、Thecircuitisshortandthetransformerneedstobeswitchedfrequently;
B、Thelineislong,thetransformerdoesnotneedtooftenswitchandoccasions;
C、Therearemanylinesandonlytwotransformers;
D、Onlytwooutgoinglines,thenumberoftransformermoreoccasions
发布时间：2024-09-25 12:05:37
