目的：分析副鼻窦病变CT扫描轴位片与冠状位片的优劣，探讨鼻窦扫描方法的最佳选择。
Purpose To select the best scanning method for accessory sinus lesions by comparing the advantages with the disadvantages of ct axial films and coronal films.
通过对插座连接焊片结构特点的分析，确定该冲压件的排样方案，设计了一副级进模。介绍了主要工作零件及模具总装结构设计。
Through analysis of structure of the socket weld connection pieces, determined the layout project, designed a progressive die. Introduced the design points of main parts and die structure.
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