“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	Loschmidt reversibility paradox Loschmidt's reversibility paradox [Loschmidt's] reversibility paradox Losenko Anton Pavlovich Lo Shu Losik Losik complex losing coalition Losiny Ostrov (Elk Island ) National Park Lo So Shing loss loss angle loss assessment loss cavity loss ceiling loss compress loss compression loss cone loss cone angle loss cone instability loss-cone instability loss control of resource development loss due to friction loss factor loss for damage by breakage of packing

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