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单词
LD50
释义
LD50
\ˌelˌdēˈfiftē\
noun
Etymology:
l
ethal
d
ose
:
the amount of a toxic agent (as a poison, virus, or radiation) that is sufficient to kill 50% of a population of animals usually within a certain time
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catchment basin
catch on
catch one's breath
cat-chop
catch out
catchpenny
catchphrase
catchpole
catchpoll
catch ring
catch-rope
catch-roper
catch-roping
catch-stitch
catch stitch
catch the ten
catch the wind
catch title
catchup
catch-up
catch up
catchwater
catchwater
catchwater drain
catchweed
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更新时间:2026/9/27 4:10:33