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Solar car Tokai Challenger of Japan's Tokai University races during the second day match of 2017 World Solar Challenge in Canberra, Australia on Oct. 9, 2017. (Xinhua/2017 Bridgestone World Solar Challenge)
Solar car Tokai Challenger of Japan's Tokai University races during the second day match of 2017 World Solar Challenge in Canberra, Australia on Oct. 9, 2017. (Xinhua/2017 Bridgestone World Solar Challenge)