针对深度图像中的拉伸特征，提出一种基于体素连通性和区域生长的快速提取方法。
An extraction method based on voxel connectivity and region growth is proposed for the extrusion features of range images.
合金拉伸蠕变曲线具有典型的三阶段特征，即较短的减速蠕变阶段和较长的第三蠕变阶段。
The tensile creep curve was composed of the typical primary creep stage, steady-state creep stage and the accelerated creep stage.
研究了基于草图轮廓的拉伸与旋转特征模型重建的生成方法，以实例零件说明本文提出的重建方法是切实可行的。
The generation methods of sketch-based feature model reconstruction are presented in this thesis. Experimental results show that the methods presented here are reliable.
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