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单词
half-life
释义
half-life
noun
countable
physics
UK
Word Forms
singular
half-life
plural
half-lives
DEFINITIONS
1
1
the amount of time that is needed for a substance to lose one half of its
radioactivity
Synonyms and related words
Radioactivity and radiation
alpha particle
atomic
becquerel
half-life
noun
countable
physics
US
Word Forms
singular
half-life
plural
half-lives
DEFINITIONS
1
1
the amount of time that is needed for a substance to lose one half of its
radioactivity
Synonyms and related words
Radioactivity and radiation
alpha particle
atomic
becquerel
随便看
po-faced
pogey
pogo
pogonophobia
pogo stick
pogrom
poignant
poinsettia
point
point-and-click
point-blank
pointed
pointer
pointillism
pointing
pointing device
pointless
point man
point of fact
point of law
point of order
point of presence
point of reference
point of sale
point of view
英语词典包含67175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。
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更新时间：2025/7/27 8:56:45