| 单词 |
tangency |
| 释义 |
tangency|ˈtændʒənsɪ| [f. L. type *tangentia, f. tangent-em tangent: see -ency.] The quality or condition of being tangent; state of contact. problem of tangencies, in old Geom., a problem in which it is required to describe a circle passing through given points, and touching straight lines or circles the position of which is given, the data being limited to three.
1819Pantologia s.v., Problem of Tangencies. Ibid., The treatise of tangencies was restored by Vieta. 1867F. H. Ludlow Little Brother 34 The wildest point of tangency which Man's railroads make with Weaver's woods. 1895H. P. Stokes in Athenæum 16 Nov. 690/1 Points of tangency between certain Elizabethan celebrities. |

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