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阐述现代文献信息服务环境中图书馆分类统计分析对象的意义和步骤 ,并列举几种分类统计比率及其在图书馆工作中的应用。
Explain the significance and steps of the classification and statistical analysis of the objects in the modern literature information service environment, and also give some examples of the classification and statistical ratios and their application in the library work.