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单词 natural radioactivity
释义 DictionarySeebackground radiation

natural radioactivity


natural radioactivity

[′nach·rəl ‚rād·ē·ō·ak′tiv·əd·ē] (nucleonics) Radioactivity exhibited by naturally occurring radionuclides.

natural radioactivity


natural radioactivity

Radioactivity emitted by elements in the environment, such as radon in soil. It may include alpha particles, beta particles, or gamma rays. See also: radioactivity
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