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關(guān)注：1
2013-05-23 12:21
求翻譯：研究放射性現(xiàn)象，發(fā)現(xiàn)鐳和釙兩種天然放射性元素是什么意思？ 待解決
 懸賞分：1
- 離問題結(jié)束還有
研究放射性現(xiàn)象，發(fā)現(xiàn)鐳和釙兩種天然放射性元素
問題補(bǔ)充： |
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2013-05-23 12:21:38
Study the phenomenon of radioactivity, radium and polonium found in two natural radioactive elements
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2013-05-23 12:23:18
Radioactivity, study found two natural radioactive elements radium and polonium
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2013-05-23 12:24:58
Research radioactive phenomenon, discovery radium and po two kinds of natural radioactivity element
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2013-05-23 12:26:38
Study on radiation-induced phenomena, discovered both polonium and Radium natural radioactive elements
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2013-05-23 12:28:18
Study on radiation-induced phenomena, discovered both polonium and Radium natural radioactive elements
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