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11、CAD安装哪个版本好？如何查看图纸是哪个版本CAD生成的？
视频详细讲解CAD年份版本和内部版本及AC编号的关系，对选择合适版本安装提供很好的参考，讲解如何通过AC编号可以知道图纸由哪个版本CAD生成。#cad，#CAD技巧，#cad教程。
CAD操作技巧篇12/58
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