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
面的微分不变量,导出可展面的
线与
,
面和切线面为例阐明这些性的几何意义。
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.
本文通过可展面的微分不变量,导出可展面的线与,面和切线面为例阐明这些性的几何意义。
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