请输入您要查询的英文单词:
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
随便看
sexier
sexiest
sexily
sexiness
sexism
sexist
sexivalent
sex kitten
sexless
sexlessly
sexlessness
sex-limited
sex linkage
sex-linkage
sex-linked
sex object
sexologist
sexology
sexpartite
sex play
sexploitation
sexpot
sex ratio
sex shop
sex symbol
英语词典包含188688条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。
Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2026/1/23 20:52:41