radioactivity
radioactivity 英 [,reɪdɪəʊæk'tɪvɪtɪ] 美 [,redɪoæk'tɪvəti]
n. 放射性；[核] 放射能力；[核] 放射现象
名词复数:radioactivities
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- n. 放射性；[核] 放射能力；[核] 放射现象
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1. What is the danger level for humans and radioactivity?
对人类的危险程度和放射性是什么？
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2. radioactivity can also be washed into rivers, lakes and the sea where fish and seafood could take up the radionuclides.
放射性也可以被冲入河流、湖泊和海洋，在这些地方鱼类和海产食品可能会吸收放射性核素。
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3. This led her to deduce that there were other substances within pitchblende that had properties of radioactivity.
于是玛丽推断出，在沥青铀矿中可能还有其他具有放射性的物质。
- radioactivity (n.) 1899, from French radioactivité, coined 1898 by the Curies; see radioactive.
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