The library principle of the view of procurability is summarized and five library practice principles are revealed.

对可获得性论的图书馆原理作了总结，揭示出图书馆五条实践原理。

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The library principle of the view of procurability is summarized and five library practice principles are revealed.

对可获得性论的图书馆原理作了总结，揭示出图书馆五条实践原理。

youdao