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单词
galactic halo
释义
galactic halo
Encyclopedia
理学
银晕
释
galactic halo
银晕
银河系外围近似球状的物质分布被称为银晕。一般星系都有晕,称为星系晕。
理学
不规则星系
释
galactic halo
星系晕
旋涡星系外围结构稀疏的近球状区域,由晕族天体等物质组成。
Astronomy
galactic halo
星系晕
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