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随着科学技术的高度发展,各行各业的文献资料情报信息也以惊人的速度在增长,据有关统计资料;自1665年英国《皇家哲学汇刊》创刊以来,1800年全世界仅有科技加刊100余种,二十世纪初不过5000余种,目前75个国家和地区的统计,已达139299种,超过五百种的国家达三十三个之多,以《化学、化工文摘》为例,1977年来自130多个国家,近六十种语言,共发表了四十一万余篇论文。目前每年差不多要增加二亿个情报单元(系指一篇文
With the high development of science and technology, literature and information information of all trades and professions is also growing at an alarming rate. According to relevant statistics, since the founding of British Royal Philosophy Bulletin in 1665, the world has only science and technology plus There are more than 100 kinds of books, but there are more than 5,000 kinds in the early twentieth century. At present, the statistics of 75 countries and regions have reached 139299 kinds. There are more than 33 countries in more than 500 kinds. The “Chemical and Chemical Abstracts” For example, in 1977 from more than 130 countries in nearly 60 languages, a total of more than 410,000 papers were published. At present, about 200 million intelligence units are to be added every year (this refers to an article