a product data model 产品数据模型
unified product data model 产品统一数据模型表示
integrated product data model 集成化的产品数据模型
object-oriented product data model 面向对象产品数据模型
Product Life Cycle Data Model 产品生命圈数据模型
product data meta-model 产品数据元模型
product data management model 产品数据管理模型
product model data 产品模型数据
Data Product Disposal Model 数据产品处理模型
This paper describes a product data model as a product structural tree that is composed of data objects and relation objects, and expresses the product structural tree as a matrix.
将产品数据模型表示为包含数据对象和关系对象的树状结构,并用矩阵的形式加以描述。
After the extended directed graph with weightings for describing product information is introduced, the changes of product data model during different stages of design and manufacturing are studied.
在介绍描述产品信息的扩展赋权有向图之后,研究了产品数据模型在设计与制造过程不同阶段的变化。
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