It describes the STEP-NC data model based on the extension of step, introduces some major concepts like manufacturing feature and working step, overviews the data model for milling.
首先简要介绍了STEP - NC数据模型与STEP的关系以及制造特征、工步等主要概念，概括了铣削模型的基本结构和组织方式。
It describes the STEP-NC data model based on the extension of step, introduces some major concepts like manufacturing feature and working step, overviews the data model for milling.
首先简要介绍了STEP - NC数据模型与STEP的关系以及制造特征、工步等主要概念，概括了铣削模型的基本结构和组织方式。
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