物理学与天文学分类系统简介
Introduction to the physics and astronomy classification scheme
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摘要: 简要介绍了当前在国际上得到最广泛使用的物理学与天文学文献分类系统(PACS)，以使读者对其组织体系和使用方法有明确认识.Abstract: The Physics and Astronomy Classification Scheme (PACS),which is most widely used internationlly in physics and astronomy is briefly introduced.The organization and use of PACS are described in detail.
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