The latest CAD systems also provide the tools that are needed to prepare permit packages, plot layouts, bills of material and final drawings.

最新的CAD系统还能提供准备可用包装，设计图的绘制，材料清单以及最终图纸的工具。

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The. 3d files can be less than 10% of original CAD file sizes, allowing for secure distribution of files that cannot be input into CAD or CAM packages.

同原始CAD文件大小相比，该。3d文件还不及其10%，因此可以安全分发那些无法输入到CAD或CAM包内的文件。

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