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钋
释义
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Encyclopedia
理学
放射性元素
释
polonium
钋
天然放射性元素,元素符号Po,原子序数84,半衰期最长的同位素的质量数209,属周期系ⅥA族。为纪念居里夫人[注]的祖国波兰(Poland)而命名。
Astronomy
全称:polonium。缩写:Po
钋
Chemistry
>放射化学与辐射化学>放射性元素化学>释义
polonium
钋
随便看
benefiting qi
benefiting qi for activating blood circulation
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benefit of adaptation
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Benefit of Work-related Injury
benefit payment clause
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benefit-sharing of genetic resources
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Benefits of the Arts
benefit statistics of scientific and technological archives utilization
benefits—BOP
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