Visitors look at a model of the oceanic research vessel Tansuo-1, mother ship for manned submersible Shenhai Yongshi, at the 9th International Military and Civilian Dual-use Technology Exhibition in Chongqing, June 21, 2018. (Photo: China News Service/Zhou Yi)
A visitor looks at a model of the Haiyan underwater glider at the 9th International Military and Civilian Dual-use Technology Exhibition in Chongqing, June 21, 2018. (Photo: China News Service/Zhou Yi)
A vehicle on display at the 9th International Military and Civilian Dual-use Technology Exhibition in Chongqing, June 21, 2018. (Photo: China News Service/Zhou Yi)
A vehicle on display at the 9th International Military and Civilian Dual-use Technology Exhibition in Chongqing, June 21, 2018. (Photo: China News Service/Zhou Yi)
A vehicle on display at the 9th International Military and Civilian Dual-use Technology Exhibition in Chongqing, June 21, 2018. (Photo: China News Service/Zhou Yi)
Visitors use VR to try out the manned submersible Shenhai Yongshi at the 9th International Military and Civilian Dual-use Technology Exhibition in Chongqing, June 21, 2018. (Photo: China News Service/Zhou Yi)
A vehicle on display at the 9th International Military and Civilian Dual-use Technology Exhibition in Chongqing, June 21, 2018. (Photo: China News Service/Zhou Yi)
A vehicle on display at the 9th International Military and Civilian Dual-use Technology Exhibition in Chongqing, June 21, 2018. (Photo: China News Service/Zhou Yi)