对基于CATIA的三维参数化建模方法及其技术进行了研究，详细地阐述了三维参数化建模的基本方法和一般步骤。

A study is carried out upon three-dimensional parametric modeling method and its technology based on CATIA, the basic method and general steps of 3-d parametric modeling are expounded in detail.

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理论计算结果表明，利用这种参数化建模方法完成的PD C钻头三维布齿模型是精确、可靠的。

The theoretical calculation result indicates that the three-dimensional tooth arrangement model of PDC Bit's with the parameter method is precise and reliable.

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并结合参数化驱动技术实现网络化三维建模，并基于CATIA平台给出了验证模型。

Then networked three dimensional modeling will be realized by parameter drive , and a proved model based on CATIA was provided .

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