“three-level preservation System”的概念、定义、翻译、参考文献-科学参考

单词	three-level preservation System
释义	three-level preservation System 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	priority of the high frequency word priority of the latest used words and characters priority production system priority program flip-flop priority queue priority rule for operations priority scheduling priority scheduling method priority scheduling system priority service priority support priority tag model priority to the protection of personal safety principle priority traffic management priority tree method priority tree method 0''' prior knowledge prior-posterior analysis prior probability prior right of trademark prior risk prior type Pripyat River Priscillianists prism

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。