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• 02:59, 8 June 2011 Cowin talk contribs uploaded File:Radiationtalk 110618.png (公開講座：應急輻射監測 主講者： 譚廣雄先生 (香港天文台科學主任) 最近日本福島核電站發生的核輻射洩漏事故引起世界各國關注，而市民對核輻射會否影響香港亦表憂慮。本講座主要介紹天)