英语释义

1. a radioactive series beginning with uranium I of mass number 238 and ending with radium G constituting the nonradioactive isotope of lead of mass number 206: uranium I, at. no. 92→uranium X1 at. no. 90 (synonym thorium 234)→uranium X2, at. no. 91 (syn. protactinium 234)→uranium II, at. no. 92 (syn. uranium 234)→ionium, at. no. 90 (syn. thorium 230)→radium 226, at. no. 88→radon 222, at. no. 86→radium A, at. no. 84 (syn. polonium 218)→radium B, at. no. 82 (syn. lead 214) [or astatine 218]→radium C, at. no. 83 (syn. bismuth 214)→radium C′, at. no. 84 (syn. polonium 214) [or radium C″, at. no. 81 (syn. thallium 210)]→radium D, at. no. 82 (syn. lead 210)→radium E, at. no. 83 (syn. bismuth 210)→radium F, at. no. 84 (syn. polonium 210)→radium G, at. no. 82 (syn. lead 206) — called also radium series

片语

uranium actinium series锕铀系

uranium-series dating轴系年龄测定法

uranium-series isotopes铀系同位素

uranium decay series铀衰变系

uranium radium series铀镭系

uranium m series铀系

uranium-series dating method铀系法

Uranium-series Chronology铀系年代学

英汉例句

• the time scale and intensity of the water rock interaction in a uranium deposit can be semi quantitatively assessed using uranium series disequilibrium.

  某铀矿床中水-巖反应的时间范围和强度，可通过对铀天然衰变系放射性不平衡的研究得到半定量化。

• uranium series dating technique is the important means of quaternary chronology.

  铀系不平衡定年技术是第四纪年轻年代学的重要定年手段。