This can make sense for applications such as CAD programs, where it is easier to work on drawings without perspective.

这对于某些应用程序，如CAD程序来说是很有意义的，因为没有透视可更容易地将精力集中在绘图上。

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If you can't find a local site operations group that can provide a CAD image of the building, try taking a digital image of the building map diagrams posted near the entrances of your building.

如果找不到当地测绘工作组提供的建筑物CAD图像，那么可以拍摄一张建筑物入口附近贴出的建筑物平面示意图的数码图像。

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If China stops importing Canola oil the demand of CAD will be a lot lower and CAD can sink further.

如果中国停止进口加拿大油菜籽，对加元的需求将大量减少，从而可以进一步贬值。

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DeltaCad: This easy-to-learn CAD program can produce scaled house plans and maps, as well as business cards, forms, signs, labels, and flow charts.

CNN: Top 10 hot graphics tools

Using a legitimate club head or even a photograph as a model, rapid-prototyping technology can spit out CAD files and create a master for a driver or iron head quickly and inexpensively.

WSJ: Psst��Wanna Buy a Counterfeit Golf Club? | Golf Journal by John Paul Newport

New brawny applications take full advantage of today's cheap Intel-based servers and are at the right price--low--with interfaces so intuitive that CAD novices, especially mechanical engineers, can swiftly pick them up.

FORBES: Easy Designer