research on the cad method cad方法研究
So the research on the parting surface design technology and method is becoming one of the important facets in the field of the injection mold CAD.
因此，分型面设计技术与方法的研究，成为注塑模具CAD技术研究与开发的重要内容之一。
So the research on the injection mould feed system design technology and method is becoming one of the important facets in the field of the injection mould CAD.
因此，浇注系统设计技术与方法的研究，成为注塑模具CAD技术研究与开发的重要内容之一。
On basis of CAD and CAPP, we research and develop one set of design program system for welded pipe roller. This paper introduce us function and parameter design method of program system.
基于计算机辅助设计（ CAD）与计算机辅助工艺设计（C APP）开发了一种焊管轧辊设计系统。
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