释义 |
car·bon-14 dating 英ˌkɑːbənfɔːˈtiːn, -fəʊr-美ˌkɑrbənfɔrˈtin, -for-AHDkär'bən-fôr-tēnʹ, -fōr- 基本英英近义反义 放射性碳测定年龄
Noun: a chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon-14; believed to be reliable up to 40,000 years近义词 carbon dating碳定年radiocarbon dating放射性碳测定年龄,放射性… |