A child tries a 5G VR set during the 2019 Smart China Expo in southwest China's Chongqing Municipality, Aug. 27, 2019. The 2019 Smart China Expo was open to public for free on Tuesday. (Xinhua/Wang Quanchao)
2019 Smart China Expo opens to public for free
Source: Xinhua| 2019-08-28 07:16:46|Editor: ZD
