建筑供配电设备、高低压开关柜、变压器、断路器、继电器、各种开关等；

Variable distribution equipment, high and low power switchgear, transformer, breaker, relay, switch;

youdao

建筑供配电设备、高低压开关柜、变压器、断路器、继电器、各种开关等；

Variable distribution equipment, high and low power switchgear, transformer, breaker, relay, switch;

youdao