“double point”的概念、定义、翻译、参考文献-科学参考

单词	double point
释义	double point [¦dǝb·ǝl `pȯint] ^MATHEMATICS A point on a curve at which a curve crosses or touches itself, or has a cusp; that is, a point at which the curve has two tangents (which may be coincident).
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