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
微分
,导出可展面率线与率特征,并以锥面和切线面为例阐明这些特性几何意义。
断;;;
;渡;;;;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.
本文通过可展面微分,导出可展面率线与率特征,并以锥面和切线面为例阐明这些特性几何意义。
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