对服务生命周期的关注允许移动网络运营商为其控制和传输网络选择最好的技术。
This focus on the service life cycle enables mobile network operators to select their best options for control and transport networks.
本文论述综合有线传输网络在城市轨道交通工程中的选择及应用，对目前地铁传输系统的应用也作了分析。
The paper demonstrates the choice and the application of combined cable transmission network in rail transit, and analyzes the application of metro transmission system at pre-sent.
本文论述综合有线传输网络在城市轨道交通工程中的选择及应用，对目前地铁传输系统的应用也作了分析。
The paper demonstrates the choice and the application of combined cable transmission network in rail transit, and analyzes the application of metro transmission system at pre-sent.
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