单词	tangent plane
释义	tangent plane noun : the plane through a point of a surface that contains the tangent lines to all the curves on the surface through the same point Word History First Known Use 1856, in the meaning defined above
随便看	Cheloniidae cheloniidaes Chelonus chelp Chelsea Chelsea boot Chelsea china chelsea-der Chelsea-Derby ware Cheltenham Chelura Chelus Chelyabinsk chelyabinsks Chelydidae Chelydra Hogarth's line hogarthian hogback hogbacks Hogben hogbite hogchoke hogchoker hogchokeres

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