在重新整理现有的XML资料连接或在将新的XML资料汇入至活页簿之前发生。
Occurs before an existing XML data connection is refreshed or before new XML data is imported into the workbook.
与前两个自学课程一样，您还要汇入并使用dwg资料来定义零件。
As with the two previous tutorials, you also import and use DWG data to define the part.
使用并参考汇入的dwg资料以确定特征标注。
Use and refer to the imported DWG data to determine feature dimensions.
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