建国以来中国基层科普工作发展的特征分析——以1949年以来四川省科协成立专门学会的情况为例
건국이래중국기층과보공작발전적특정분석——이1949년이래사천성과협성립전문학회적정황위례
Characteristics of science popularization at the grass-root level since founding of PRC:taking society establishment under SAST from 1949 as an example