osculating circle

英 美
  • 密切圆
  • circle n.圆圈;圈子;包厢v.划圈;包围;盘旋;环绕
  • osculating adj.密切的动词osculate的现在分词.
Noun:
  1. the circle that touches a curve (on the concave side) and whose radius is the radius of curvature

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