中间层: 122 phrases in 25 subjects |
Agriculture | 2 |
Air defense | 3 |
Animal husbandry | 2 |
Architecture | 2 |
Aviation | 12 |
Business | 1 |
Communications | 2 |
Computer networks | 1 |
Earth sciences | 11 |
Electronics | 4 |
General | 7 |
Geology | 1 |
Librarianship | 1 |
Management | 1 |
Metallurgy | 16 |
Nautical | 2 |
Nursing | 1 |
Plastics | 4 |
Polygraphy | 1 |
Polymers | 3 |
Reproductive biology | 1 |
Securities | 2 |
Space | 5 |
Technology | 36 |
United States | 1 |