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利用省干传输网对铁路接入网实施复用段保护,对长途电话网、互联网骨干网和铁路业务网的保护,提高了各业务网的安全性和可靠性。
The provincial transmission network is used to implement the protection of the multiplex section in the railway access network and the protection of the long distance telephone network, the Internet backbone network and the railway service network, which improves the security and reliability of each service network.