vedação : 111 phrases in 17 subjects |
Agriculture | 7 |
Chemistry | 6 |
Coal | 5 |
Communications | 1 |
Construction | 5 |
Earth sciences | 18 |
Electronics | 10 |
Environment | 3 |
General | 2 |
Health care | 1 |
Industry | 14 |
Materials science | 2 |
Mechanic engineering | 20 |
Metallurgy | 3 |
Natural sciences | 2 |
Patents | 1 |
Transport | 11 |