请输入您要查询的英文单词:
单词
promethium
释义
pro·me·thium
BrE
/
prəˈmiːθiəm
/
NAmE
/
prəˈmiːθiəm
/
noun
[
U
]
(
symbol
Pm
)
a
chemical
element
.
Promethium
is
a
radioactive
metal that was first produced artificially in a nuclear
reactor
and
is
found
in
small
amounts
in
nature
钷(放射性化学元素)
随便看
play on/upon sth
play on words
play out
play-out
play out sth
playpen
playpens
play-politics
play possum
play-possum
playroom
playrooms
plays
play's
play safe
play-safe
public companies
public company
public convenience
public conveniences
public corporation
public corporation
public corporations
public defender
public defenders
英汉双解词典包含314281条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。
Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2026/8/6 4:09:14