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Dewey decimal system

资料来源 : WordNet®

Dewey decimal system
     n : a system used by libraries to classify nonfictional
         publications into subject categories; the subject is
         indicated by a three-digit numeral and further
         specification is given by numerals following a decimal
         point; publications are shelved by number [syn: {Dewey
         decimal classification}, {decimal system of
         classification}]
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