In this paper we have studied a three-dimensional modelling approach based on freehand sketch.
研究一种基于手绘草图进行三维建模的方法。
The optimum angle of V-shaped cracks is obtained. The fracture control effect is verified by three-dimensional modelling tests.
实验得出了最佳V型裂纹张角，对其断裂控制效果作了三维模型试验验证。
The frame construction, the work flow and the three dimensional modelling method of pneumatic rock drill based on virtual prototype technology were elaborated.
阐述了气动凿岩机虚拟样机设计的框架结构、工作流程和三维模型构建方法，并在此基础上进行了参数化设计与运动仿真的研究。
Finally has drawn up the two-dimensional project blueprint which according to the design variable needs, and has completed gate valve's three dimensional modelling.
最后根据设计参数绘制了所需的二维工程图纸，并完成了闸阀的三维造型。
Finally has drawn up the two-dimensional project blueprint which according to the design variable needs, and has completed gate valve's three dimensional modelling.
最后根据设计参数绘制了所需的二维工程图纸，并完成了闸阀的三维造型。
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