Uraniumseries 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。
2
There are three naturally occurring radioactive series - the thorium series, the actinium series, and the uraniumseries.
有三个天然存在的放射系列,即钍系、锕系和铀系。
3
According to the basic principle in uraniumseries disequilibrium, a calculating method for the mixing ratio of a three source recharge system of groundwater is raised.