Read Edit View history 切平面 qiēpíngmiàn tangent plane Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 切平面 · qiēpíngmiàn · tangent plane 2026/03/04 切平面 qiēpíngmiàn tangent plane tangent plane to a surface 在曲面上任一点都可以确定一个切平面。 created sense Mar 4, 2026, 02:25 AM