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
dead-reckoner
dead reckoning
dead ringer
deadrise
dead run
dead sea
dead sea fruit
dead sea scrolls
dead set
dead slow
dead-smooth
dead soldier
dead spindle
dead spot
dead-stick landing
dead storage
dead time
dead water
dead weight
deadweight
deadweight tonnage
deadwood
deadwork
deaerate
deaeration
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:2025/12/3 8:09:31