十進分類法 shíjìnfēnlèifǎ decimal classification Origin Definitions Defs Strokes Stroke Words Sentences Sents 杜威十进分类法 dùwēishíjìnfēnlèifǎ Dewey Decimal Classification the library classification system developed by Melvil Dewey for the purpose of organizing library books and other resources by subject using a decimal system