A decision was made early on to use only open-source software, but "computer-assisted design (CAD) tools are still the biggest weakness in open-source, " says Merz.

早先项目组决定仅仅只使用开源软件，但是”计算机辅助设计软件工具仍然是开源领域的最大弱势所在“梅尔兹说道。

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At the same time, CAD vendors continuously developed the tied connection of CAD and PLM tools.

同时，CAD供应商不断开发新的工具，试图将CAD和PLM关联起来。

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Complex contour following programs can be set-up by a teach and learn procedure, or imported from CAD models, with suitable "addon" tools.

复杂物质的轮廓跟踪曲线程序可以根据教学步骤，或者从CAD模式进入，加上适当的“添加”工具。

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To take my nominal, mostly abandoned profession of mechanical engineering, much of the intelligence is now in CAD tools.

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Those CAD tools have evolved and so has Autodesk.

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