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mean distance
释义
WordReference Random House Unabridged Dictionary of American English © 2024
mean
′
dis
′
tance,
[
Astron.
]
Astronomy
the arithmetic mean of the greatest and least distances of a planet from the sun, used in stating the size of an orbit;
the semimajor axis.
1885–90
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crashworthy
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crass
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crassus
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cratch
crate
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craterlike
crater mound
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更新时间:2026/6/27 8:28:29