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单词
rare-earth element
释义
WordReference Random House Unabridged Dictionary of American English © 2024
rare
′
-earth
′
el′ement
(râr
′
ûrth
′
),
USA pronunciation
[
Chem.
]
Chemistry
any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called
rare
′
-earth
′
met′al.
1955–60
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latent ambiguity
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latent period
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lateral canal
lateral chain
lateral fissure
laterality
lateralization
lateral line
lateral lisp
laterally
lateral magnification
lateral meristem
lateral moraine
lateral pass
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更新时间:2025/7/23 13:11:00