现代的图书馆,特别是科技专业图书馆,应该以及时为读者提供所需信息资料为目的。同时,通过精选采购、资源共享等手段,充分发挥有限经费的作用。所以,衡定一个图书馆的优劣,不应以藏书量的多寡为主要依据,因为藏书量只能说明所藏书刊的数量,不能说明其质量,更不能说明其所发挥的作用如何。对一个现代科技图书馆来说,一千本不再有价值而需剔除的旧书,其作用不及一本有价值的新 Modern libraries, especially science and technology libraries, should provide their readers with the information they need in a timely manner. At the same time, through the selection of procurement, resource sharing and other means, give full play to the role of limited funds. Therefore, the determination of the pros and cons of a library should not be based on the amount of books it holds, for it only shows the quantity of books and periodicals it can not explain its quality, much less the role it plays. For a modern science and technology library, a thousand old books that no longer have value but need to be removed can not serve as a valuable new book