有放射性的浮遊微粒無處不在,多少而已,那檢測儀就是測濃度的

來源: china-walker 於 2011-03-17 09:02:04 [舊帖] [給我悄悄話] 本文已被閱讀：次

你們幾個應該去辦份雜誌在大街上發,來這裏當義工太可惜了

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