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期刊是图书馆收藏文献的主要类型之一。与图书相比,它的出版周期短、发行速度快、刊载论文多、内容新颖、传播面广。能比较及时地反映世界科学技术发展的水平和动向。不少期刊常刊登最新的研究成果。据统计,期刊的情报量占文献情报总量的65%以上,因此是最重要的情报来源之一。当代科学技术正向着不断分化和不断综合的两个方向发展。分化的结果导致学科分支愈来愈多;综合的结果则使各个学科之间互相交叉渗透,出现许多边缘学
Journals are one of the main types of library collections. Compared with books, its publication period is short, the issue speed, published many essays, new content, wide spread. It can reflect the level and trend of world science and technology development in a timely manner. Many journals often publish the latest research results. According to statistics, journal intelligence accounts for more than 65% of the total literature and intelligence, it is one of the most important sources of intelligence. Contemporary science and technology are developing in two directions: constantly dividing and constantly integrating. The result of differentiation leads to more and more branches of discipline. The comprehensive result interpenetrates each subject and leads to many marginal studies