释义 |
scan·di·um AHD[skănʹdē-əm] D.J.[ˈskændiːəm]K.K.[ˈskændiəm]n.Symbol Sc (名词)符号 Sc - A silvery-white metallic element found in various rare minerals and separated as a byproduct in the processing of certain uranium ores. An artificially produced radioactive isotope is used as a tracer in studies of oil wells and pipelines. Atomic number 21; atomic weight 44.956; melting point 1,540°C; boiling point 2,850°C; specific gravity 2.99; valence 3. See table at element 钪:一种发现于许多稀有矿物中的银白色金属元素,是某种铀矿加工过程中分离出的副产品,人造放射性同位素被用作油井和油气管道的探测剂。原子序数21;原子量44.956;熔点1,540°C;沸点2,850°C;比重2.99;化合价3 参见 element
- From Latin Scandia [Scandinavia] 源自 拉丁语 Scandia [斯堪的纳维亚]
scanʹdic AHD[-dĭk] (形容词) |