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维护系统
agric.
servicing system
wind.
maintenance system
维护 系统:
134 phrases
in 18 subjects
Air defense
2
Artificial intelligence
1
Automobiles
3
Aviation
44
Communications
4
Economy
1
Electronics
43
Explosives and Explosive Ordnance Disposal
1
Information technology
4
Mechanics
1
Mining
1
Navigation
1
Rail transport
2
Refrigeration
2
Space
12
Technology
3
Telecommunications
7
Wind Energy
2
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