航空 图 : 153 phrases in 23 subjects |
Agriculture | 1 |
Air defense | 1 |
Aviation | 29 |
Cartography | 1 |
Earth sciences | 5 |
Economy | 1 |
Electronics | 4 |
Engineering geology | 2 |
Exhibitions | 1 |
Forestry | 2 |
General | 5 |
Librarianship | 2 |
Metallurgy | 1 |
Oil / petroleum | 13 |
Remote sensing | 1 |
Skydiving | 5 |
Soil science | 1 |
Space | 7 |
Sports | 1 |
Technology | 66 |
Telecommunications | 1 |
Transport | 1 |
United States | 2 |