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]