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分析制定图书剔旧标准的意义,论述环境科学类图书剔旧标准化的可能性以及剔除的依据、标准与方法,通过实例对标准化的重要参考因素——文献半衰期、流通统计、出版社和作者进行统计与分析。计算出环境类图书的半衰期,并根据4个要素的重要程度的高低给出权重及相关公式。
This paper analyzes the significance of developing the standard of ticking old books, discusses the possibility of ticking out old books of environmental science and the basis, criteria and methods of exclusion, and conducts an analysis of the important reference factors of standardization through examples - half-life of literature, circulation statistics, publishing houses and authors Statistics and Analysis. Calculate the half-life of environmental books, and give the weight and related formulas according to the importance of the four elements.