通过建立一个基于层次数据结构的焊接机架表示模型，表示焊接机架的功能信息和几何信息，以支持焊接机架全过程的设计活动。
In order to support the whole process of design activities, a hierarchical model to represent the functional and geometrical information of welded machine frame is presented.
定性的讨论了挤压次数及材料力学性能对冷压焊接头性能的综合影响。
Integrated influence of extrusion times and metal "s mechanical property to quality of cold pressure welding joint was discussed."
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