radioactive decay
英 [ˌreɪdiəʊˈæktɪv dɪˈkeɪ]
美 [ˌreɪdioʊˈæktɪv dɪˈkeɪ]
放射性衰变
英英释义
noun
- the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation
双语例句
- She notes that the theory does not totally explain all of the excess heavy xenon in the atmosphere, nor for additional xenon made from the radioactive decay of uranium and plutonium in rocks.
斯人指出，该理论对重氙同位素在大气中过量之解释并非完全；亦未能解释铀与钚之放射性衰变在岩石中遗下之附加氙。 - Each element has at least one isotope with unstable nuclei that can undergo radioactive decay.
每个元素至少有一个同位素不稳定原子核可以进行放射性衰变。 - My first thought was: hey! that looks like radioactive decay or something.
Rhett当时的第一反应就是这些数据看上去像是放射性衰变。 - Chemistry also uses calculus in determining reaction rates and radioactive decay.
化学也使用演算在确定反应速率和放射性衰变。 - It had been used for practical ends, to identify elements and to unravel radioactive decay chains.
已将其用于实践的目的，去鉴别元素和阐明放射性衰变系。 - Radon is produced from the natural radioactive decay of uranium, which is found in rocks and soil.
它产生于可在岩石和土壤中找到的铀自然的放射性衰变。 - Alpha particles are these helium nuclei, and they are the result of radioactive decay.
阿尔法粒子是氦核，它们是放射性衰变的产物。 - Alpha particles are positively charged helium nuclei obtained from natural radioactive decay.
α粒子是从天然放射性蜕变得到的带正电的氦核。 - His work was done before the discovery of radioactivity and the understanding that natural radioactive decay provides a source of heat to the earth.
他的工作是做了，才发现放射性和谅解，即天然放射性衰变提供热源，以地球。 - For example, Earth's atmosphere contains only traces of helium and hydrogen, created by processes such as radioactive decay.
比如说，地球的大气中只含有由诸如放射性衰变之类的过程所产生的痕量的氦和氢。