
A woman watches the "T-sea" underwater robot displayed during the first Shanghai ocean intelligent equipment summit forum in Lingang, east China's Shanghai, July 11, 2017. (Xinhua/Zhang Jiansong)

A woman watches the "T-sea" underwater robot displayed during the first Shanghai ocean intelligent equipment summit forum in Lingang, east China's Shanghai, July 11, 2017. (Xinhua/Zhang Jiansong)