erbium

名词 erbium:

1. a trivalent metallic element of the rare earth group; occurs with yttrium
   同义词：Er, atomic number 68

er.bi.um

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 '8; atomic weight '7.2'; melting point ,497=C; boiling point 2,900=C; specific gravity 9.05; 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'8；原子量'7.2'；溶点,497=C；沸点2,900=C；比重9.05；化合价3参见 element

来源：
After Ytterby , a town in Sweden
源自 依特拜 ，瑞典一城镇