你算過你的“可見光密度”和“不可見光密度”嗎？還有其它的輻射，比如中子和伽瑪等等等等

來源: iwbb 於 2011-11-14 17:01:54 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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