A rare metal of the cerium group, the base of the earth yttria, n. Symbol Y.
| 单词 | θ68704 |
| 释义 | the world > matter > chemistry > elements and compounds > metals > specific elements > yttrium > [noun] (2) yttrium1822 A rare metal of the cerium group, the base of the earth yttria, n. Symbol Y. Subcategories:— compounds (1) |
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