Most academic and research libraries use the Library of Congress system.
大多数学术和研究图书馆都使用国会图书馆系统。
2005 ESLPod
A more recent one is called the Library of Congress system.
一个更新的系统称为国会图书馆系统。
英语百科
Library of Congress Classification
The Library of Congress Classification (LCC) is a system of library classification developed by the Library of Congress. It is used by most research and academic libraries in the U.S. and several other countries; in these countries, most public libraries and small academic libraries continue to use the older Dewey Decimal Classification (DDC).