At present most of commercial CAD systems lack manufacture information of components. and many experiments about feature description of components exist more limitation.

目前大多数商用CAD系统缺乏零件的制造信息，而且许多实验系统所进行的零件特征描述亦存在较大局限性。

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There exist many design techniques for ASICs, which are based on advanced design tools and extensive bases for IC CAD.

专用集成电路的设计目前有很多方法，但都基于有先进的设计工具和较为丰富的集成电路CAD库。

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The design of garment pattern CAD relates to many modification methods, one of which is free curve modification. However, many modification modules in the present CAD software have drawbacks.

服装纸样CAD设计涉及到许多修改，其中一个主要修改模块是自由曲线的修改，但目前CAD软件中的修改模块有许多不足。

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Many new CAD programs are also being bundled with product-management programs that allow for on-the-fly updating of a bill of materials.

FORBES: Technology

The whole application process took many months at one point her application was kicked back to her because she included a computer CAD drawing of the store when the instructions require the drawing be made by hand (I repeat, I am not making this up).

FORBES: When Julia Tried to Start a Business