The principle of the expression of feature model in STEP is elaborated.
阐述了STEP特征模型的表达原理。
参考来源 - 面向虚拟企业的STEP信息集成研究3_D parametric feature model contains completely data information about part. The feature parametric design tied in multi-graph of geometrical-shell, forming a virgin semantic entity with “feature”operation unit.
采用三维参数化特征造型设计的零件，信息比较完全。
参考来源 - 面向对象球形容器成形CAD系统的研究The core of this paper is the design and realization of the Region GIS based on feature model. Firstly it introduces the feature model which is one of the space data model in GIS area.
本文以区域GIS的要素模型为着眼点，介绍了空间数据模型的分类，要素模型的特点及其数学基础，设计并实现了基于要素模型的区域GIS系统。
参考来源 - 基于要素模型的区域GIS的设计与实现When realized the braided units’ localization, feature model can be constituted by every unit’s information. The feature model includes two characters: the braided unit’s braiding distance and braiding angle.
之后通过预制件特有信息的约束条件实现编织花节的定位，进而求得每个编织花节的特征模型参量。
参考来源 - 三维编织复合材料预制件表面编织均匀性的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
Feature recognizing based on feature models is researched on the base of product feature model.
以产品特征模型为基础，研究基于特征模型的特征识别。
Finally, narrated the realization of sketch dimension in the parametric feature model system EB3D.
最后讲述了草图尺寸标注在参数化特征造型系统EB3D中的实现。
Finally, you develop a feature model (expressed in UML metaclass diagrams) for the entire product line, as shown in Figure 3.
最后，您将为整个产品线开发一个功能模型(以uml元类关系图表示)，如图3所示。
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