The formula of the curve tangent slope at some peculiar point in the orthograph on the stereoscopic surface intersecting line and the method of making tangent are given as well.
本文通过可展曲面的微
不变量,导出可展面的曲率线与曲率特
,并以锥面和切线曲面为
阐明这些特
的几何意义。
The formula of the curve tangent slope at some peculiar point in the orthograph on the stereoscopic surface intersecting line and the method of making tangent are given as well.
本文通过可展曲面的微不变量,导出可展面的曲率线与曲率特,并以锥面和切线曲面为阐明这些特的几何意义。
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