A robot and an intelligent drone patrol at a 500-kilovolt converter station in Shapingba district in Chongqing, Nov 23, 2017. (Photo: China News Service/ Wang Yuan)
RIGHT BG
A robot and an intelligent drone patrol at a 500-kilovolt converter station in Shapingba district in Chongqing, Nov 23, 2017. (Photo: China News Service/ Wang Yuan)