释义 |
radio·car·bonBrE /ˌreɪdiəʊˈkɑːbən/ NAmE /ˌreɪdioʊˈkɑːrbən/ noun [U ] (specialist ) a radioactive form of carbon that is present in the materials of which living things are formed, used in carbon dating放射性碳(碳的放射性同位素,用以测定物体的年代)◆ radiocarbon analysis 放射性碳分析 |