机读目录 (ＭＡＲＣ)的诞生是图书情报界在文献目录发展史上的一次重大飞跃和革命 ,不但大大加快了编目与检索速度 ,而且促进了书目数据的交换。它既保留了图书馆传统的著录项目 ,又更深地揭示了书目的内涵 ;采用了国际通用的标准著录条件 ,与国际书目接轨 ;具有扩充和修改功能 The birth of Machine Readable Catalog (MARC) is a great leap forward and revolution in the development history of the bibliographic information in Library and Information Service, which not only greatly speeds up the cataloging and retrieval, but also facilitates the exchange of bibliographic data. It not only retains the traditional bibliographic items of the library, but also reveals the meaning of the bibliography more deeply. It adopts the internationally accepted standard bibliographic conditions and links with the international bibliography. It has the functions of expansion and revision