The teleconference system for State Grid Corporation of China is a large and complex network to provide special high level and large scale teleconference service.
国家电网公司电视电话会议系统是一个庞大复杂的特殊业务网络，主要用于召开大规模、高规格电视电话会议。
The teleconference system for State Grid Corporation of China is a large and complex network to provide special high level and large scale teleconference service.
国家电网公司电视电话会议系统是一个庞大复杂的特殊业务网络，主要用于召开大规模、高规格电视电话会议。
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