air-jet : 49 phrases in 13 subjects |
Aviation | 1 |
Chemistry | 7 |
Coal | 1 |
Construction | 1 |
Environment | 1 |
Forestry | 2 |
Industry | 3 |
Mechanic engineering | 6 |
Municipal planning | 1 |
Natural resourses and wildlife conservation | 6 |
Technology | 2 |
Textile industry | 8 |
Transport | 10 |