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
- 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。 - 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。 - 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。 - 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。 - Radon is a gas that comes from the radioactive decay of radium in rocks.
氡是来自岩石中镭辐射衰变而产生的气体。 - 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。 - The radiation of alpha particles during radioactive decay.
在放射性衰变的过程中放出α粒子的辐射。 - Radiation resulting from radioactive decay.
由放射性衰变产生的辐射。 - 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。 - 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。