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词汇
background radiation
释义
background radiation
noun
[
C
]
physics
,
environment
specialized
uk
/
ˌbæk.ɡraʊnd reɪ.diˈeɪ.ʃ
ə
n
/
us
/
ˌbæk.ɡraʊnd reɪ.diˈeɪ.ʃ
ə
n
/
背景辐射
(可在地球检测到的自然发生的辐射,来自外层空间以及土壤和岩石中)
radiation
found naturally on earth that comes from some soil, rocks, etc., and from outer space
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