档案的唯一性档案的唯一性包括四层含义：实体的唯一性、所含信息的唯一性、档案形成过程的唯一性和档案积累方式的唯一性。２０世纪中叶出现的静电复印技术使唯一性问题变得复杂化，复制件在内容形式、制作材料上与原件完全相同使复制件与原件难以区分，更为重要的是，复... Uniqueness of the file The uniqueness of the file includes four meanings: the uniqueness of the entity, the uniqueness of the information contained, the uniqueness of the process of forming the file, and the uniqueness of the mode of file accumulation. The electrophotographic technique that appeared in the middle of the 20th century complicated the problem of uniqueness. Duplicates were made in the form of content and were made of the same material as the original, making it hard to distinguish between the copy and the original. More importantly, ...