其中氢约占71.3%、氦约占27%，其它元素占2%

来源: ^3.1415926^ 于 2011-12-07 12:04:54 [旧帖] [给我悄悄话] 本文已被阅读：次

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其中氢约占71.3%、 氦约占27%， 其它元素占2%