people can breathe in alpha particles.

samuelcheng · 2011-03-18 20:00:15Z

people can breathe in alpha particles.簡介

來源: samuelcheng 於 2011-03-18 20:00:15 [檔案] [舊帖] [給我悄悄話] 閱讀數 : (0 bytes)

回答: 說點實在話：對待核輻射，還是謹慎些為好。由 simo 於 2011-03-17 20:00:15

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