县级图书馆是公共图书馆服务体系全覆盖的重要节点。
The county-level library is a key point of the public library service system covering the entire society.
公共图书馆服务体系中的文献资源建设需要政策和法律来保障、规范和调节。参考文献16。
Collection development in the public library service systems needs policies and laws to protect, normalize and regulate. 16 refs.
不同的公共图书馆服务体系有不同的文献资源建设模式，而不同的文献资源建设模式各有利弊。
Different public library service systems adopt different collection development modes, and each of them has its pros and cons.
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