The predigestion of the bending products, the selection of base-face and tree data structure of products, automatic determination of bending sequence etc have also been introduced. 文中还介绍了弯曲件的简化、基准面的选择、树状产品数据结构的建立及自动编排等关键技术。
· Discuss the data model of graphical query Language, and put forward the predigestion of the graphical query language and the rules of conversion between the data models. ·讨论了图形化查询语言的数据模型,并提出了对图形化查询语言数据模型的简化以及数据模型之间进行转换的规则。