Research on brand strategy of science and technology periodicals 并列题名:Research on brand strategy of science and technology periodicals Research group on development and strategy of science and technology of China Research on evaluation of science and technology public service Research on the governance of science and technology innovation parks Research on public service system of science and technology innovation Research on social stratification of Chinese science and technology personnel Submission guidelines to food science and technology periodicals Research on the executive ability of science and technology policy research on educational activities of science and technology museums