Chinese Library Classification (5th edition) Web edition has released formally on the Internet. It affords functions such as the category retrieval, the real-time retrieval of OPAC multi-databases, the classification number indexing and comments. But there also have some problems, Chinese Library Classification editorial board of National Library of China could improve Chinese Library Classification (5th edition) Web edition from the classification number construction, developing multilingual edition, the mapping between different classifications.%《中国图书馆分类法》（第5版）Web版已在国际互联网上正式发布，提供类目检索、OPAC多库实时检索、分类号标引和评论注释等功能。但Web版依然存在一些问题，国家图书馆《中国图书馆分类法》编辑委员会可以从分类号构建、开发多语种版本、不同分类法之间的映射等方面予以改进。
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