Intelligence science & technology exhibition held in Tianjin
2018-05-18
Xinhua
People look at an underwater robot during an intelligence science and technology exhibition in North China’s Tianjin, May 17, 2018.[Photo/Xinhua]
People look at a vehicle of JD Logistics during an intelligence science and technology exhibition in North China’s Tianjin, May 17, 2018.[Photo/Xinhua]