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单词
planetary precession
释义
WordReference Random House Unabridged Dictionary of American English © 2024
plan
′
etary preces
′
sion,
[
Astron.
]
Astronomy
the small component of the precession of the equinoxes contributed by the motion of the ecliptic, the change in orientation of the plane of the earth's orbit being produced by the gravitational attraction of the planets.
1860–65
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更新时间:2026/5/13 1:26:32