| 单词 | earth–moon |
| 释义 | > as lemmasearth–moon earth–moon adj. Astronomy (attributive) designating the system in which the earth and moon are the only gravitationally significant bodies; of or relating to this system. ΚΠ 1882 Amer. Jrnl. Sci. 124 336 The earth–moon system may have been developed from the time when the earth–moon formed one planet revolving on its axis in a few hours. 1930 J. H. Jeans Universe around Us (ed. 2) iv. 225 Tidal friction has in all probability been mainly responsible for the present configuration of the earth–moon system. 2002 P. C. Plait Bad Astron. vii. 68 The center of the Earth is orbiting the Earth–Moon barycenter. < as lemmas |
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