product characteristics短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 产品特征 Studying the design characteristics of the forming cutter, the paper presents theproduct characteristicsbased on the function decomposition with the product function diagram.摘要分析了成形刀具的设计特点，以产品设计功能分解图表达基于功能分解的产品特征。