Liu Yunshan(L), a member of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee, visits expert Shi Changxu, 93, who won the State Top Scientific and Technological Award in 2011 in Beijing, capital of China, Jan. 30, 2013. (Xinhua/Li Tao)

Liu Yunshan(C), a member of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee, visits expert Wu Liangyong, who won the State Top Scientific and Technological Award in 2012 in Beijing, capital of China, Jan. 30, 2013. (Xinhua/Rao Aimin)