The paper reviews category theory based on similarity and theories.
本文综合概述了基于相似性和理论驱动的归类理论。
In this background, new product development concept based on category management was born.
在这种客观状况下，运用品类管理来改善新品开发的概念应运而生。
In this background, new product development concept based on category management was born.
在这种客观状况下，运用品类管理来改善新品开发的概念应运而生。
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