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.

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贝尔和阿拉孔说，他们更喜欢把自恋当做一种特征，而不是一种障碍，因为许多人都自恋，但在社会中依然很正常。

Bell and Alarcon said they like the idea of calling narcissism a trait rather than a disorder, because many people can be narcissists and still function in society.

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基孔肯雅热的特征是突然发热，经常伴有关节痛。

Chikungunya is characterized by an abrupt onset of fever frequently accompanied by joint pain.

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