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单词 yttrium metal
释义

WordReference Random House Unabridged Dictionary of American English © 2024
yttrium met′al, [Chem.]
  1. Chemistryany of a subgroup of rare-earth elements, of which the cerium and terbium metals comprise the other two subgroups.

Collins Concise English Dictionary © HarperCollins Publishers::
yttrium metal n
  1. any one of a group of elements including yttrium and the related lanthanides, holmium, erbium, thulium, ytterbium, and lutetium
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