摘要
对凹回转面可见轮廓线的投影在奇点附近仍光滑的情况下，分析了可见轮廓线本身与奇点对应点处的曲线特征以及可见轮廓线在其对称平面的投影图上与奇点对应的点的特征．
The characters of the singular point of the visible contour line of a concave rotative surface and its corresponding projection are analyzed on condition that the projection of the contour line is smooth near the singular point, the shape of the visible contour line of a concave rotative surface near the singular point is further studied.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1999年第3期31-34,共4页
Journal of South China University of Technology(Natural Science Edition)
关键词
凹回转面
奇点
可见轮廓线
光滑
画法几何
concave rotative surface
singular point
visible contour line
smooth
