...经济法律论文发表 - 中国论文网 关键词】三维实体；二维平面；教学应用 [gap=475]key word】 three dimensional entity; Two-dimensional surface; Teaching application ...
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Here the three dimensional entity boundary is boundary surface mesh, which owns not only geometric property but also topology property.
此时，三维实体的“边界”是指“边界表面网格”，它既具有几何性质，又具有拓扑性质。
Secondly it was widely adopted that the advanced three-dimensional entity digital design method, virtual prototype technique and digital simulation technique in the processing of design.
在设计过程中，广泛采用先进的三维实体数字化设计技术、虚拟样机技术和数字仿真技术。
The nc machining simulation environment, including roughcast, tools, fixture and machine tool modeling, is constructed in computer by combining three-dimensional entity modeling and database method.
综合利用三维实体建模技术与数据库技术，在计算机仿真模型中，构建了包括毛坯、刀具、夹具及机床等部件的“真实”数控加工仿真环境。
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