The functions of classification language, the significance of indexing and classification of papers, and the selection principles of classification languages are discussed.
讨论分类语言的功能、论文分类标引的意义和选择分类语言的原则。
The functions of classification language, the significance of indexing and classification of papers, and the selection principles of classification languages are discussed.
讨论分类语言的功能、论文分类标引的意义和选择分类语言的原则。
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