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er·bi·um AHD[ûrʹbē-əm] D.J.[ˈɜːbiːəm]K.K.[ˈɝbiəm]n.Symbol Er （名词）符号 Er - A soft, malleable, silvery rare-earth element, used in metallurgy and nuclear research and to color glass and porcelain. Atomic number 68; atomic weight 167.26; melting point 1,497°C; boiling point 2,900°C; specific gravity 9.051; valence 3. See table at element 铒：一种柔软的、有延展性的，银色光泽的稀土元素，用于冶金、核研究及给玻璃和陶瓷上色，原子序数68；原子量167.26；溶点1,497°C；沸点2,900°C；比重9.051；化合价3 参见 element
- After Ytterby , a town in Sweden 源自 依特拜 ，瑞典一城镇
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