Dewey decimal classification
(亦作Dewey system)
noun
- an internationally applied decimal system of library classification which uses a three-figure code from 000 to 999 to represent the major branches of knowledge, and allows finer classification to be made by the addition of further figures after a decimal point杜威十进分类法（国际通用的十进制图书分类法, 用从000到999的三位数编码来代表主要的学科分支, 并用小数点后添加的数字来进行更细的分类）。
词源
late 19th cent.: named after Melvil Dewey （1851-1931）， American librarian.