本程序是基于VB的AutoCAD二次开发，有助于我们齿轮建模,This procedure is based on the secondary development of AutoCAD VB help us gear modeling

Altium_designer_技巧汇总,非常全面，找了很久找到的，对我们新手帮助太大了，免费给大家下载。-Altium_designer_ tips summary, very comprehensive, looking for a long time to find, for us to help the novice too, free for everyone to download.