据联合国教科文组织统计,世界上每年将有近44亿页以上的文件、档案转换成缩微品,且呈逐年上升趋势。缩微品促进了世界信息与知识的传播,其作用远远超过了除纸质文件以外的任何其他媒介。在长期的应用实践中,缩微技术得到了不断的发展和完善。近几年出现的缩微扫描技 According to UNESCO statistics, there will be more than 4.4 billion pages of documents in the world each year, and the files will be converted into microforms, showing a year-by-year upward trend. Microfiners promote the dissemination of world information and knowledge much more than any other medium except paper. In the long-term application of practice, micro-technology has been constantly developed and improved. In recent years the emergence of microfilm scanning technology