Mechanics and Astronomy. An oscillation of the axis of a rotating object; spec. the periodic variation of the inclination of the earth's axis…
| 单词 | θ106017 |
| 释义 | the world > movement > motion in specific manner > alternating or reciprocating motion > oscillation > [noun] > oscillation of a spinning top (1) nutation1879 Mechanics and Astronomy. An oscillation of the axis of a rotating object; spec. the periodic variation of the inclination of the earth's axis… |
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