论文部分内容阅读
北京科技期刊及编排现代化展览会于1990年5月22日至27日在北京民族文化宫举行。这是建国40年来科技领域举办的大型期刊展览活动。通过展览,不但使观众了解到北京科技期刊
Beijing Science and Technology Journals and Modernization Exhibition organized in May 22, 1990 to 27 in the Beijing National Palace of Culture. This is a large-scale periodical exhibition held in the field of science and technology in the 40 years since the founding of the People’s Republic of China. Through the exhibition, not only to understand the audience Beijing Science and Technology Journal