Switching equipment alternates transmission across all the links in a linkset to ensure equal usage of all facilities. 交换设备对链路群中的所有链路进行交替传输以确保对所有设施的均衡使用。
Each is equipped with two computers, two stable elements, the necessary indicating instruments, and switching equipment. 每间配备两具计算器，两具稳定器，必要的指示仪器，以及信号交换设备。
Horizontal pressure tanks for air pressure generating stations in electrical switching plants. 电气开关设备中气压发生装置用卧式压力容器。
