radioactive decay

1. 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。
2. Radioactive decay with emission of carbon nuclei
   碳核发射放射性衰变
3. 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。
4. 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。
5. 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。
6. 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。
7. Radioactive decay of the nuclides in the process of the gravitational constant decrease
   核素在引力常数减小过程中的放射性衰变
8. 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。
9. 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。
10. Electromagnetic radiation emitted during radioactive decay and having an extremely short wavelength.
    辐射性衰变放出的电磁射线，波长非常短。
11. 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。
12. Unlike helium-4, it cannot be produced by radioactive decay.
    与氦－4不同之处是，氦－3不能由放射性衰变产生。
13. To disintegrate or diminish by radioactive decay.
    衰变由于放射性衰变而解体或缩小。
14. 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。
15. From their work emerged the picture of radioactive decay that is still valid-a violently disruptive explosion of a single atom.
    根据他们的工作，展现出至今仍然成立的关于放射性衰变的图象&单个原子的强烈的分裂性爆炸。
16. Measurement of geologic time, as through isotopic radioactive decay. radiocarbon 14 dating method
    地质年代测定通过放射性同位素衰变来测定地质年代放射性碳14测定年龄法
17. In it he explains that this churn of knowledge is like radioactive decay: you cannot predict which individual fact is going to succumb to it, but you can know how long it takes for half the facts in a discipline to become obsolete.
    在书中他解释说知识的新旧交替如同放射性衰变，你无法预知某项特定知识是否会受这种衰变效果影响而被淘汰，但你能够找出某一领域的知识在多久之后会有一半被淘汰。
18. 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。
19. 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。
20. However, some of the minerals contain xenon isotopes unlike those usually produced by radioactive decay of uranium.
    然而，有些含氙同位素的矿物并非如此，是由铀的放射性衰变产生的。
21. So the single most common example of first order kinetics of this form is radioactive decay.
    具有这种形势的最常见的，一阶动理学过程是放射性衰变。
22. Variations from place to place are due to factors such as rainfall, evaporation, biological activity and radioactive decay.
    由于受降雨、蒸发、生物活动以及放射性衰变等因素的影响，不同的海区海水盐度也不同。
23. Radiation resulting from radioactive decay.
    由放射性衰变产生的辐射。
24. Rutherford first identified the action of probability in radioactive decay.
    卢瑟福首先认识到几率在放射性衰变中的作用。
25. 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。
26. According to the rules of radioactive decay, a difference equation of n component radioactive decay function is derived.
    按照放射性衰变的规则，导出了n组分放射性衰变函数的差分方程。
27. This paper discusses basic principle, working method and data processing of radon surveying. Considering radioactive decay of radon surveying data and many disturbing factors in actual work, we require analysis, emendation and processing of actual data.
    在论述了测氡法的基本原理、工作方法及数据处理的基础上，针对测氡数据放射性衰变的特点和在实际工作中受干扰因素较多等原因，对实测数据进行分析、校正与处理。
28. Dry deposition, vertical diffusion, washout and radioactive decay were considered.
    模型考虑了干、湿沉降、垂直扩散以及放射性衰变；
29. Mathematical relationship between Rn daughter concentrations and ventilation, adhesion and deposition, and radioactive decay was developed in the paper.
    本文给出了氡子体浓度和通风、附着和沉积、以及放射性衰变之间的关系。
30. Due to the randomness of radioactive decay and nuclear reaction, the signals from detectors are random in time.
    由于核衰变和粒子反应的随机性，探测器给出的信号在时间上是随机的，但一般的信号发生器给出的都是周期性的信号。

noun

1. the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation

   Synonym:    decaydisintegration