The paper pointed out that the entity object pattern of professional CAD software was the foundation which realizes intelligent adaption of profession entity.

本文指出，专业CAD软件的实体对象模式是实现专业实体的智能化自适应的基础。

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As a professional application software, the hydraulic CAD system is a widely used assistant designing method in the hydraulic industry.

液压CAD系统作为一种专业应用软件，是液压行业经常使用的辅助设计方法。

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The current professional reverse softwares requirement higher technical designer, and integrate with common CAD software are not mature.

②、目前专业逆向软件对设计人员技术要求较高，况且与通用CAD 软件的集成还不够成熟。

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Currently, around 30, 000 professional 3D printers are installed around the world, while around 10 million people actively use 3D CAD software.

ENGADGET: FORM 1 delivers high-end 3D printing for an affordable price, meets Kickstarter goal in 1 day