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单词
megaparsec
释义
meg·a·par·sec
AHD
[mĕgʹə-pär'sĕk]
D.J.
[ˈmegəˌpɑːsek]
K.K.
[ˈmɛgəˌpɑrsɛk]
n.
(名词)
One million parsecs.
百万秒差距(表示天体间距离的单位3.26光年)
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更新时间:2026/9/15 18:42:34