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单词 principal normal
释义

Definition of principal normal in English:

principal normal

noun
Geometry

  • The normal drawn to a given point on a curve and located in the plane containing the direction of curvature at that point.

Origin

Mid 19th century; earliest use found in Encyclopaedia Metropolitana.

Definition of principal normal in US English:

principal normal

noun
Geometry

  • The normal drawn to a given point on a curve and located in the plane containing the direction of curvature at that point.

Origin

Mid 19th century; earliest use found in Encyclopaedia Metropolitana.
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更新时间：2025/6/18 22:26:56