| 单词 | planetary ellipsoid |
| 释义 | > as lemmasplanetary ellipsoid planetary ellipsoid n. Mathematics (now rare) an ellipsoid formed by revolving an ellipse about its conjugate (shorter) axis. ΚΠ 1879 Proc. Royal Soc. 29 98 The results..are found, in the first instance, for an ellipsoid whose major axis is the axis of revolution, but a slight alteration will render them applicable also to a planetary ellipsoid. 1934 Philos. Trans. (Royal Soc.) A. 232 227 The surfaces, α = const., constitute the family of planetary ellipsoids. < as lemmas |
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