The reference libraries have built up more than 3000 CD-ROMs, including many multi-media and full-text databases.
各参考图书馆共藏有超过3000只唯读光碟，包括很多多媒体及全文数据库。
A uniform metadata representation is introduced for heterogeneous databases, multi media information and other information sources.
介绍一种对异质数据库、多媒体信息及其它信息源数据都适用的、统一的元数据表示模型。
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