air-jet : 66 phrases in 15 subjects |
Automobiles | 2 |
Chemistry | 5 |
Coal | 1 |
Construction | 3 |
Environment | 1 |
General | 9 |
Industry | 1 |
Mechanic engineering | 9 |
Municipal planning | 1 |
Natural resourses and wildlife conservation | 4 |
Nuclear physics | 4 |
Physics | 4 |
Technology | 7 |
Textile industry | 6 |
Transport | 9 |