宽带ip网
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ip wide band network ip宽带网络
ip wide-band network ip宽带网
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The wide band IP MAN is a central IP network built by telecommunication company within the scope of metropolitan area, it is the city important information infrastructure.
宽带IP城域网是电信运营商在城域范围内建设的城市IP骨干网络，它是城市重要的信息基础设施。
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