单词 | samarium |
释义 | samarium (once / 656629 pages) n WORD FAMILY samarium USAGE EXAMPLESThese metals, particularly neodymium, samarium and dysprosium, are not actually all that rare. Economist(Nov 17, 2016) Particularly effective are rare-earth metals like samarium, neodymium, and praseodymium. BBC(May 14, 2012) For instance, iPods contain small quantities of the rare earths dysprosium, neodymium, praseodymium, samarium and terbium. Time(Mar 13, 2012) n a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite Syn|Hyper Sm, atomic number 62 metal, metallic element any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. |
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