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to phrases
设计改进
avia.
design improvement
met.
design sophistication
设计 改进
:
28 phrases
in 18 subjects
Automobiles
2
Aviation
1
Bridge construction
1
Commerce
2
Compressors
1
Construction
1
Economy
1
Electronics
5
Explosives and Explosive Ordnance Disposal
2
General
1
Horticulture
1
Information technology
1
Metallurgy
2
Oil processing plants
1
Space
1
Technology
2
Telecommunications
2
United Nations
1
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