radiometric
🇺🇸
/ˌreɪdiəʊˈmetrɪk/
🇬🇧
/ˌreɪdiəʊˈmetrɪk/
adjective
R
involving the measurement of radiation, such as radioactivity, to determine the age of materials or the properties of objects
The geologist used radiometric dating to determine the age of the ancient rock layers.
地质学家使用放射性定年法来确定古老岩层的年龄。
translation
放射性测定