| 单词 | oblateness |
| 释义 | > as lemmasˈoblateness ˈoblateness n. the quality or fact of being oblate; the degree of this. ΘΚΠ the world > space > shape > curvature > curved three-dimensional shape or body > [noun] > sphericity or globularity > spheroidicity > spheroid > condition of being flattened at poles oblateness1787 1787 Philos. Trans. (Royal Soc.) 77 202 Seven ellipsoids of different degrees of oblateness. 1871 J. A. S. Rollwyn Astron. Simplified xx. 235 Centrifugal force would satisfactorily explain this spheroidal oblateness. 1954 C. Payne-Gaposchkin Introd. Astron. (1956) ii. 25 If a is the diameter measured though the equator, and b that measured through the poles, the oblateness is expressed by (a−b)/a. 1996 Icarus 123 503/1 We consider the motions of circumplanetary objects perturbed simultaneously by solar gravity, radiation pressure, planetary oblateness, and electromagnetic forces. < as lemmas |
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