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

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