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V2EX  ›  衰变
Maddox0523 摄影家眼中废弃的屋子也是一道风景
摄影  •  Maddox0523  •  Oct 9, 2015
Livid 碘-131 的衰变类型是中子发射么？
科幻  •  Livid  
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 •  Mar 18, 2011  •  Lastly replied by Astroboy0303 		5
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