(It is pointed out that the construction of digital synchronization network is the most basic request for the digital development of communication network. Then it introduces the outline of the construction of the digital synchronous network and the outline of the construction of the digital synchronous network, and explains the function of the digital synchronous network in the communication network.)
发表于 2022-7-31 11:49:55
粤ICP备14042591号-1
粤ICP14042591号