A visitor tries an intelligent exhibit at the 2020 Global Key and Core Technology Innovation Conference in Xi'an, northwest China's Shaanxi Province, Sept. 16, 2020. The 2020 Global Key and Core Technology Innovation Conference, themed "Key and Core Tech: Promoting High-quality Development", kicked off in Xi'an on Wednesday. (Xinhua/Zhang Bowen)
2020 Global Key and Core Technology Innovation Conference kicks off in Xi'an
Source: Xinhua| 2020-09-16 21:52:18|Editor: huaxia