The research to improve the data quality of CAD model in original modeling stage is very significative both on theory and on practice.

提高初始建模阶段CAD模型数据交换质量的研究具有较强的理论意义和实用价值。

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Feature modeling is the key technique in the new CAD system, it is the core technique of product model.

特征造型技术是新一代CAD系统的关键技术，是产品模型技术的核心。

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Furthermore, a new method that combines CAD modeling software and finite analysis software to solve the engineering questions is set forth in the article.

同时，提出了CAD造型软件与有限元分析软件相结合解决工程实际问题的方法。

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Thankfully, printing out complicated objects doesn't require a mastery of CAD or other complex 3D modeling software.

ENGADGET: MakerBot Replicator impressions: the dawning of 3D printers in every home?