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单词
near-earth object
释义
near-Earth object
near-Earth object
n.
Abbr.
NEO
A comet or asteroid whose orbit around the sun brings it near Earth's orbit.
near-earth object
near-earth object
[
‚nir ′ərth ‚äb‚jekt
]
(astronomy)
An asteroid or comet whose orbit takes it within 1.3 astronomical units of the sun.
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更新时间:2025/3/17 21:07:19