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3月17日,七一。所再次中标,与长江三峡开发总公司签定了长江三峡水利工程枢纽二期工程“三峡永久通信系统
March 17, seven one. Again won the bid, and the Three Gorges Development Corporation signed the Yangtze River Three Gorges Project Phase II "Three Gorges Permanent Communication System