“三线典藏制”的概念、定义、翻译、参考文献-科学参考

单词	三线典藏制
释义	三线典藏制 Encyclopedia 管理学三线典藏制释 three-level preservation System三线典藏制图书馆按照馆藏文献利用率高低及新旧程度，结合服务方式，将馆藏资源依次划分为三个层次，组成一、二、三线书库的藏书布局方法。
随便看	population control population correlation coefficient population covariance population crash population crisis population demography population density population density of pest Population Development population deviation population dispersal population distribution population distribution laws population distribution of cancer population diversity population doubling time population dynamics population dynamics of marine organisms population dynamics of rodents population ecological restoration population ecology population equilibrium population equivalent population eruption population ethic

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。