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A visitor experiences an AR security device based on Nokia's 5G technology at the First China International Import Expo in Shanghai, east China, Nov. 5, 2018. (Xinhua/Fang Zhe)
A visitor experiences an AR security device based on Nokia's 5G technology at the First China International Import Expo in Shanghai, east China, Nov. 5, 2018. (Xinhua/Fang Zhe)