Chinese President Xi Jinping, also general secretary of the Communist Party of China (CPC) Central Committee and chairman of the Central Military Commission, and other Party and state leaders present certificates to representatives of the winners of the State Natural Science Award, the State Technological Invention Award, and the State Scientific and Technological Progress Award, at an annual ceremony to honor distinguished scientists, engineers and research achievements at the Great Hall of the People in Beijing, capital of China, Nov. 3, 2021. (Xinhua/Li Xueren)