America already has the world's most developed space monitoring system with a network of radars and telescopes. But its surveillance is patchy.
美国一直都拥有全球最发达的由雷达和望远镜网络组成的太空监测系统，但其侦察零散不全。
The system consists of remote video surveillance monitoring center and background control center which conducts data transmission between remote port and background platform through 3g network.
该系统由远端视频监控和后台监控中心两大部分组成，通过3G网络进行远端与后台间的数据传输。
The system consists of remote video surveillance monitoring center and background control center which conducts data transmission between remote port and background platform through 3g network.
该系统由远端视频监控和后台监控中心两大部分组成，通过3G网络进行远端与后台间的数据传输。
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