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to phrases
本底放射性
běndǐ fàngshèxìng
oil
background radioactivity
wind.
background activity
本底放射性:
16 phrases
in 11 subjects
Chemistry
1
Desert science
1
Earth sciences
2
Electronics
2
General
1
Geophysics
1
Metallurgy
1
Nuclear physics
1
Oil / petroleum
2
Sports
1
Technology
3
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