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单词
oort dark matter
释义
Oort dark matter
Oort dark matter
[
¦ȯrt ′därk ‚mad·ər
]
(astronomy)
Matter of unknown nature that is postulated to exist in the disk of the Milky Way Galaxy in order to account for the spatial and velocity distributions of stars in the direction perpendicular to the galactic plane.
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更新时间:2025/3/4 7:38:06