电力系统操作员监视和操作交换机及电气控制中心的相关设备，控制传输网络中电力的分布。
Power systems operators monitor and operate switchboards and related equipment in electrical control centres to control the distribution of electrical power in transmission networks.
哈里斯交换机在电力系统中应用非常广泛。
Harris switches are widely applied in power system at present.
在电力系统中，由于对通信的可靠性要求较高，因此程控数字交换机正在得到广泛的应用。
In electric power system, Digital Program Controlled Exchange has been used broadly because communications requests high reliability.
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