| 单词 |
co-tangential |
| 释义 |
co-tangential, a. Math.|kəʊtænˈdʒɛnʃəl| Also contangential. [f. co-, con- + tangential.] Having the same tangent.
1879Thomson & Tait Nat. Phil. I. i. §130 A line of curvature of a surface is a line which at every point is co-tangential with normal section of maximum or minimum curvature. 1886Jeffery in London Math. Soc. Proc., On..Contangential..Spherical Circles. |

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