释义 |
radio·activeBrE /ˌreɪdiəʊˈæktɪv/NAmE /ˌreɪdioʊˈæktɪv/ adjectivesending out harmful radiation caused when the nuclei (= central parts) of atoms are broken up 放射性的;有辐射的▸ radio·activ·ity BrE /ˌreɪdiəʊækˈtɪvəti/NAmE /ˌreɪdioʊækˈtɪvəti/ noun [U] ◆the study of radioactivity 放射性研究◆a rise in the level of radioactivity 辐射强度的增加 |