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科技情报在领导决策和科研、生产中的重要性是不言而喻的。为了获得科技情报最主要的手段就是对各种科技文献进行检索(机检或手检)。现在世界上可供科技情报检索用的文献资料,真是浩如烟海,很多很多。有人说近三十年多的科技成果,已超人类几千年历史上的总和。现在全世界每年出版的科技文献有:科技期刊约5万种、科技图书约17万种,国际科技会议资料约10万篇,发表科技论文约500万篇、样本约50万种,专利说明书约100万种,还有技术标准约20万
The importance of scientific and technological intelligence in leading decision-making and scientific research and production is self-evident. In order to obtain the most important means of scientific and technological intelligence is to retrieve a variety of scientific and technological literature (mechanical inspection or hand inspection). The world is now available for scientific and technological information retrieval literature, is vast, many, many. Some people say that nearly 30 years of scientific and technological achievements have exceeded the sum of thousands of years of human history. There are now about 50,000 scientific and technological journals, about 170,000 science and technology books, about 100,000 science and technology conference materials, about 5 million scientific and technological papers published, about 500,000 samples, One million kinds, there are about 200,000 technical standards