“double tangent”的概念、定义、翻译、参考文献-科学参考

单词	double tangent
释义	double tangent [¦dǝb·ǝl `tan·jǝnt] ^MATHEMATICS 1. A line which is tangent to a curve at two distinct noncoincident points. Also known as bitangent. 2. Two coincident tangents to branches of a curve at a given point, such as the tangents to a cusp.
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