radioactive series
英 [ˌreɪdiəʊˈæktɪv ˈsɪəriːz]
美 [ˌreɪdioʊˈæktɪv ˈsɪriːz]
网络 放射系; 放射系列
双语例句
- A highly unstable radioactive element ( the heaviest of the halogen series); a decay product of uranium and thorium.
一种极不稳定的放射性元素（卤素系列中最重的一种），铀和钍腐烂的产物。 - Radioactive series: Any of four sets of unstable heavy atomic nuclei that undergo a series of alpha decay and Beta decay until a stable nucleus is achieved.
放射性系：四组不稳定的重原子核，通过一系列α衰变和β衰变直至达到稳定的核为止。 - The large number of radioactive isotopes among the heavy elements fit into three series.
重元素中的大量放射性同位素分属于三个系列。 - The E-factor method for solving the equations of succesive decay in a radioactive series
放射性递次衰变方程的E因子解法 - The numerical methods used in analysing the experimental decay data of synthesizing a new heavy neutron rich isotope 239 Pa are studied, and its half life is obtained by analysing the decays of a radioactive series for the first time.
根据合成239Pa实验的特定条件，利用递次衰变关系首次确定了丰中子新核素239Pa的半衰期。 - A proof of the secular equilibrium formula in radioactive cascade decay series
放射性递次衰变系列中长期平衡公式的证明 - The results showed that the range of beta ray with the maximum energy in natural radioactive series is longer than thickness of a piece of decorative materials.
结果发现：由于天然放射系中最大能量b粒子的射程大于单块饰材，不能用表面b辐射水平进行无损检测判断； - Determination of the half life for a new nuclide 239 pa by analyzing the decays of a radioactive series
利用递次衰变关系确定新核素~（239）Pa的半衰期 - In the processing and utilization of rare-earth minerals, radioactive thorium series is in radioactive equilibrium basic state in raw ore, concentrate and mineral processing tailings, but in the rare earth products, enrichment, Ce-rich slag and smelting waste, the thorium series is non-radioactive state.
在稀土矿物在加工利用中，原矿、精矿和选矿尾矿中，放射性钍系基本处于放射性平衡状态，但在稀土产品、富集物、富铈渣和冶炼废渣中，钍系处于非放射性状态。