Visitors view a model of China's manned submersible Shenhai Yongshi at an exhibition held in southwest China's Chongqing Municipality, June 23, 2018. The 9th China International Exhibition of Military and Civil Technologies kicked off Thursday in southwest China's Chongqing Municipality, drawing more than 200 delegations from China and abroad. The number of visitors to the exhibition peaked Saturday. (Xinhua/Wang Quanchao)