образования : 92 phrases in 13 subjects |
Airports and air traffic control | 1 |
Aviation | 11 |
Chemistry | 12 |
Communications | 1 |
Environment | 12 |
General | 5 |
Leather | 13 |
Logic | 1 |
Metallurgy | 20 |
Meteorology | 5 |
Microsoft | 1 |
Road construction | 5 |
Technology | 5 |