英文: Abstract: In this paper,the feature of stamping part is divided into form feature,tolerance feature,management feature and material feature.The definition of theses feature and the relationship between them are presented.Then,a feature-based product defin
中文: 文摘:针对冲压件特点,将冲压件特征分为形状特征、精度特征、管理特征及材料特征,给出了这些特征的定义并描述了它们之间的联系,提出了基于特征的冲压件定义模型;然后对冲压件形状特征的表达及建模方法进行了详细的描述,为后续的冲压工艺设计提供了坚实的基础。英文: First, multi-feature integration is proposed based on the study of single feature image retrieval techniques-color feature of gray histogram, texture feature of wavelet transform and shape feature of invariant moments.
中文: 摘要本文在单一检索的基础上,对基于灰度直方图的颜色特征,基于小波变换的纹理特征和基于不变矩的形状特征进行融合。英文: prosodic feature:
中文: 韵律特征。英文: A string processing language including nesting feature and macro feature.
中文: 包含嵌套功能和宏功能的一种符号串处理语言。英文: Special DVD Feature:
中文: 特殊的DVD特点: