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标准选择
avia.
standard option
标准 选择:
27 phrases
in 14 subjects
Agriculture
2
Air defense
1
Aviation
4
Business
1
Commerce
1
Electronics
1
Explosives and Explosive Ordnance Disposal
3
Finances
1
General
1
Genetics
2
Oil / petroleum
3
Project management
1
Refrigeration
1
Technology
5
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