
Photo taken on Oct. 8, 2019 shows the exhibition stand of China Railway Rolling Stock Corporation (CRRC) at the fourth China-CEEC Conference on Innovation Cooperation in Belgrade, Serbia, on Oct. 8, 2019. China and seventeen Central and Eastern European Countries kicked off a conference on innovation cooperation here on Tuesday, bringing governments, companies and academics in the innovation ecosystem to seek synergy. (Photo by Predrag Milosavljevic/Xinhua)

Wang Zhigang, Chinese Minister of Science and Technology, addresses the opening ceremony of the fourth China-CEEC Conference on Innovation Cooperation in Belgrade, Serbia, on Oct. 8, 2019. (Photo by Predrag Milosavljevic/Xinhua)

Officials and guests pose for a group photo at the fourth China-CEEC Conference on Innovation Cooperation in Belgrade, Serbia, on Oct. 8, 2019. (Photo by Predrag Milosavljevic/Xinhua)

Serbian Prime Minister Ana Brnabic addresses the opening ceremony of the fourth China-CEEC Conference on Innovation Cooperation in Belgrade, Serbia, on Oct. 8, 2019. (Photo by Predrag Milosavljevic/Xinhua)