C2
noun
#90,193 가장 일반적인
Ionizing radiation that is naturally present in the environment.
background radiation 30초 만에
- (noun) Ionizing radiation that is naturally present in the environment.
Meanings
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1
noun Ionizing radiation that is naturally present in the environment.
Summary
Ionizing radiation that is naturally present in the environment.
- (noun) Ionizing radiation that is naturally present in the environment.
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