然后着重介绍了国际上对新世纪初准备实现的新一代国家通信网基础结构的具体设想，其中包括以分组为基的核心网和各种宽带接入网。

Finally, it emphatically describes the international proposals on new generation communication network for the next century, including the packet-based core network and broadband access networks.

youdao

然后着重介绍了国际上对新世纪初准备实现的新一代国家通信网基础结构的具体设想，其中包括以分组为基的核心网和各种宽带接入网。

Finally, it emphatically describes the international proposals on new generation communication network for the next century, including the packet-based core network and broadband access networks.

youdao