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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
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shalom
shalt
shalwar
sham
shaman
shamateurism
shamble
shambles
shambolic
shame
shamefaced
shameful
shame into
shameless
shame on you
-shaming
shamisen
shammy
shampoo
shamrock
shandy
shanghai
shangri la
shank
shants
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更新时间:2026/4/28 6:01:18