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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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更新时间:2025/11/23 15:52:46