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单词 atomic number 59
释义
atomic number 59
(extremely rare)
n

WORD FAMILY
atomic number 59
n a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
Syn|Hyper
Pr, praseodymium
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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更新时间:2024/12/23 20:42:34