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系统鉴定
space
system certification
tech.
systematic identification
系统 鉴定:
84 phrases
in 18 subjects
Air defense
3
Architecture
2
Aviation
27
Business
1
Earth sciences
4
Ecology
1
Electronics
8
Engineering geology
2
General
5
Geophysics
1
Military
1
Missiles
2
Navigation
1
Space
20
Technology
2
Telecommunications
1
Textile industry
1
United States
2
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