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物理系统
space
physical system
物理系统
:
124 phrases
in 27 subjects
Advertising
1
Aviation
14
Business
2
Communications
1
Computer networks
1
Consulting
1
Earth sciences
17
Electronics
26
General
2
Geophysics
3
Horticulture
1
Information technology
3
Management
1
Metallurgy
2
Name of organization
3
Navigation
1
Nuclear and fusion power
3
Oil / petroleum
1
Oil processing plants
2
Pest control
2
Refrigeration
1
Space
7
Technology
18
Telecommunications
2
Textile industry
1
United Nations
7
United States
1
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