她测量了这两个元素放射性的总量和原子性质,感觉到物质的放射性是同放射性元素的总量成比例的。
She named the other radium. She measured the amount of radioactivity, an atomic property, and felt that the radioactivity was proportional to the amount of the element.
居里夫人长期从事放射性元素研究,身体每况愈下,放射性元素严重灼伤她了胳膊和手臂,或许还引起致她死亡的白血病,年仅58岁。
The downsides were also great. Marie's work with radioactive elements inflicted serious burns to her arms and hands - and perhaps triggered the leukemia that killed her at age 58.
根据放射性元素分布规律、地质背景及放射性元素衰变等,建立了计算氡析出率的理论公式。
On the basis of distribution of radioactive elements and geological background, the theory equation of radon exhalation rate is derived from the decay rule of radioactive elements and gas diffusion.
简单地介绍了一些放射性元素的性质和应用,以便人们正确的认识和利用放射性元素。
This paper introduces the properties and application of some radioactive elements, aiming at making people to understand and use radioactive elements correctly.
简单地介绍了一些放射性元素的性质和应用,以便人们正确的认识和利用放射性元素。
This paper introduces the properties and application of some radioactive elements, aiming at making people to understand and use radioactive elements correctly.
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