radioactive disintegration
英 [ˌreɪdiəʊˈæktɪv dɪsˌɪntɪˈɡreɪʃn]
美 [ˌreɪdioʊˈæktɪv dɪsˌɪntɪˈɡreɪʃn]
天然蜕变现象；放射性蜕变
双语例句
- Type of radioactive disintegration ( see radioactivity) in which some unstable atomic nuclei dissipate excess energy by spontaneously ejecting an alpha particle.
放射性蜕变的一类，某些不稳定原子核自发射出一个α粒子以耗散过剩能量。 - A radioactive element of the alkali-metal group discovered as a disintegration product of actinium.
【化】镧系（即稀土元素）一种碱金属属的放射性元素，是锕瓦解的产物。 - Any of three processes of radioactive disintegration in which a Beta particle is spontaneously emitted by an unstable atomic nucleus in order to dissipate excess energy.
某些不稳定原子核为耗散其过剩能量而自发发射一个β粒子的三种放射性衰变过程的统称。 - Practically every atom had its origin in the tiny violence of a radioactive disintegration some time within the past few billion years.
实际上每个原子都来源于过去几十亿年中某一时刻放射性分裂的微小激变。 - The radioactive wastes release a lot of energy due to radioactive disintegration.
由于放射性蜕变，放射性废料释放出大量的能量。 - This method centering on solving the detector pollution of high concentration field instrument improves the method of data acquisition in open country by using the law of radioactive disintegration and statistic theory of error transfer. On this basis, the program of the instrument is also improved.
该方法以解决高浓度场仪器探测器的污染问题为核心，利用放射性衰变规律及误差传递的统计学原理，改进了野外采集数据的工作方法，改写了仪器测量程序。 - Applying the statistical theory of radioactive disintegration and the formula of error transmission. We have derived the expressions for the total standard error of dpm values obtained in liquid scintillation counting after quench correction.
本文应用放射性蜕变统计学理论及误差传递公式，推出了液体闪烁淬灭校正测量时测量结果总误差的普遍表达式。