单词 | atomic number 62 |
释义 | atomic number 62 (extremely rare) n WORD FAMILY atomic number 62 n a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite Syn|Hyper Sm, samarium 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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