Photo taken by smartphone on Sept. 14, 2016 shows hybrid electric car made by 3D printing technique on the exhibition in Chicago, the United States. The International Manufacturing Technology Show is one of the largest industrial trade shows in the world, featuring more than 2000 exhibiting companies and 114,147 registrants. It is held from Sept. 12 to 17 at McCormick Place in Chicago. (Xinhua/Wang Ping)
