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存气
chem.
dead air pocket
tech.
trapped air
存气:
99 phrases
in 20 subjects
Agriculture
1
Architecture
3
Automobiles
8
Aviation
5
Compressors
1
Construction
1
Drilling
2
Earth sciences
2
Ecology
1
Economy
2
Electronics
12
Explosives and Explosive Ordnance Disposal
1
General
1
Metallurgy
3
Nautical
4
Oil / petroleum
7
Project management
2
Space
5
Technology
37
United Nations
1
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