英语词汇tangent line怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	tangent line
释义	tangent linen.（名词） A line sharing a common point with a curve or surface and being the closest linear approximation of the curve or surface at that point.正切线：与一条曲线或一个平面共切于一点的一条线，而在切点处其与该曲线或平面的线性相似最为接近
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