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
可展曲面
微分不变量,导出可展面曲率线与曲率特征,并以锥面和切线曲面为例阐明这些特性几何意义。
;有立体感;;，视力;;
;
景;;
,喷;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.
本可展曲面微分不变量,导出可展面曲率线与曲率特征,并以锥面和切线曲面为例阐明这些特性几何意义。
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