名词
中文翻译：切线交点
同义词：
['tangent point', 'tangent intersection point', 'tangential point']
例句：
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1. In the study of geometrical figures, tangential coma is an important concept.
在几何图形研究中，切线交点是一个重要概念。
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2. The tangential coma of a circle is its center and radius.
圆的切线交点是其中心和半径。
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3. The tangential coma of a quadratic equation is the point where the line through the vertexintersects the graph.
二次方程的切线交点是顶点连线与曲线相交的点。