据安全研究人员称，格鲁吉亚的电视媒体、通信系统和交通系统也受到了攻击。
In Georgia, media, communications and transportation companies were also attacked, according to security researchers.
将混沌学理论应用于多媒体信号的保密通信是网络安全的迫切需要，也是当今世界的前沿课题和研究热点。
It is an urgent need for network secure communication to apply Chaos theory to the multimedia signals transmission, and it is one of most advanced and hot research topics internationally.
在网络中提供数字化音、视频等实时业务的多媒体多播通信是当前的研究热点。
To provide multicast for multimedia real time services, such as digital audio and video in networks, is one of the important issues in current research field.
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