The first China's unmanned underwater vehicle and lander "Rainbow Fish" are shown at the 17th session of China International Industry Fair. The "Rainbow Fish" underwater vehicle has finished its trial 4, 000 meters below the surface of the South China Sea. (CNS/Zhang Hengwei)
The 17th session of China International Industry Fair (CIIF) kicks off at National Exhibition and Convention Centre in Shanghai on Nov. 3, 2015.