έκρηξη : 124 phrases in 19 subjects |
Chemistry | 6 |
Coal | 39 |
Communications | 1 |
Demography | 2 |
Earth sciences | 21 |
Economy | 4 |
Environment | 8 |
Finances | 1 |
General | 21 |
Information technology | 1 |
Labor law | 1 |
Materials science | 1 |
Mechanic engineering | 2 |
Medical | 8 |
Natural sciences | 1 |
Nuclear physics | 1 |
Physical sciences | 2 |
Statistics | 2 |
Transport | 2 |