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本文介绍了目前高速公路通信系统设置的程控交换机网络、紧急电话网络、集群移动通信系统、指令电话、数据通信系统等的构成及功能。
This paper introduces the constitution and function of program controlled switch network, emergency telephone network, trunked mobile communication system, instruction telephone and data communication system which are set up in expressway communication system.