短語詞組短語category management theory 分類經(jīng)營理論forest category management theory 森林分類經(jīng)營理論prototype category theory 原型范疇理論product category theory 積classical category theory 經(jīng)典范疇理論direct sum category theory 直和single -category theory 單類說the prototypical category theory 型范疇理論morphism category theory 態(tài)射范疇論 返回 category theory