双回线短线路
short double-circuit transmission line
三接线端的电磁线圈线路
three terminal solenoid circuit
三接线端的起动马达电磁线圈线路
three terminal starting motor solenoid circuit
铁路线路保护监控装置
integrated protection and control device for railway substation
保持线圈测试连接
hold-in winding test connection
保持线圈磁力
hold-in winding magnetic force
保持线圈电阻
hold-in winding resistance