“polyconic”的英文意思_释义_用法

单词

polyconic

释义

polyconic, a.|pɒlɪˈkɒnɪk|
[f. poly- + conic.]
Involving or based upon a number of cones; applied to a system of map-projection in which each parallel of latitude is represented by the development of a cone touching the earth's surface along that parallel. Also n. a polyconic projection.
1864in Webster.1879A. R. Clarke in Encycl. Brit. X. 209/1 Polyconic Development. [See description.]1901C. F. Close Map Projections 31 Simple polyconic projection... The employment of polyconics saves much tabulation, and they are well suited for a topographical series. They are not so well adapted for single maps of large areas.Ibid. 32 Rectangular polyconic projection, sometimes called the rectangular tangential.

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