利用参数化技术完成了标准件模型的建立，通过用户自定义特征的方法建立开孔特征，并实现了二者的关联。
The models of each standard part could be created based on parametric method, and the pocket feature related to the standard part could be created with UDF (user defined feature) method.
在冒口绘制方面，利用UG软件的参数化尺寸驱动技术和装配环境实现了冒口绘制的高效性。
On the other hand, the riser drawing system improves the efficiency of drawing riser by the parameter technique and assembly environment in UG.
利用UG/NX的二次开发模块和参数化建模技术实现了渐开线齿轮参数化设计。
Development parametric design of the gear is realized by using UG/NX second development and parametric modeling module.
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