现代科学技术的不断进步和发展更新速度的加快,使科学技术的分工越来越细,学科门类越来越多,相关学科、边缘学科、交叉学科等的不断出新导致了有关学科文献大量涌现,加上读者的阅读需要日益增加、购置经费相对减少等因素,使文献采购工作的难度加大。1 文献的集中与离散增加了采购工作的盲目性 The continuous improvement of modern science and technology and the acceleration of the pace of development and updating have led to a more and more elaborate division of labor in science and technology and an increasing number of disciplines and the continuous emergence of relevant disciplines, marginal disciplines and interdisciplinary studies has led to the massive emergence of relevant academic literature , Coupled with the reader’s reading needs increasing, the relative reduction of acquisition funding and other factors, making the work of the literature procurement more difficult. 1 The concentration and dispersion of literature has increased the blindness of procurement work