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正密度
tech.
positive density
正密度
:
57 phrases
in 22 subjects
Automobiles
2
Aviation
1
Bridge construction
2
Business
3
Chemistry
1
Drilling
1
Economy
1
Electronics
1
General
1
Geophysics
11
Hydroelectric power stations
1
Information technology
1
Mathematics
1
Metallurgy
2
Nuclear and fusion power
3
Oil / petroleum
4
Shipbuilding
1
Space
4
Technology
11
Telecommunications
1
Textile industry
1
Wind Energy
3
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