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to phrases
general purpose system
tech.
通用系统
general-purpose system:
61 phrases
in 17 subjects
Air defense
1
Aviation
6
Business
2
Computers
1
Earth sciences
5
Electronics
9
General
3
Geology
1
Geophysics
2
Information technology
5
Mechanics
1
Metallurgy
2
Multimedia
1
Oil / petroleum
1
Space
10
Technology
8
Telecommunications
3
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