radioactive decay

英 [ˌreɪdiəʊˈæktɪv dɪˈkeɪ]

美 [ˌreɪdioʊˈæktɪv dɪˈkeɪ]

放射性衰变

医学化学

英英释义

noun

• the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation
  Synonym:decaydisintegration

双语例句

• 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。
• 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
• 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。
• 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。
• 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。
• To disintegrate or diminish by radioactive decay.
  衰变由于放射性衰变而解体或缩小。
• 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。
• 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 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。
• 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。