RE: [과학] 천체의 질량은 어떻게 구할까?

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[과학] 천체의 질량은 어떻게 구할까?

in kr-science •  7 years ago 

ㅎㅎ 빛!! 스펙트럼 도플러어어어어~~ ㅋㅋㅋ
잘보고갑니다 .ㅎ

kr-science
7 years ago by

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