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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:2025/1/11 3:30:45