文章就我国长途干线传输网的现状进行了分析，提出了优化意见和演进方案，最后对网络规划和标准制订工作提出了建议和设想。
This article analyses the current situation of our national long distance trunk transmission network and brings forward the optimization suggestion and evolve...
文章就我国长途干线传输网的现状进行了分析，提出了优化意见和演进方案，最后对网络规划和标准制订工作提出了建议和设想。
This article analyses the current situation of our national long distance trunk transmission network and brings forward the optimization suggestion and evolve...
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