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vedação : 128 phrases in 18 subjects |
Agriculture | 7 |
Chemistry | 7 |
Coal | 8 |
Communications | 1 |
Construction | 4 |
Earth sciences | 17 |
Electronics | 11 |
Environment | 3 |
General | 2 |
Health care | 1 |
Industry | 18 |
Materials science | 3 |
Mechanic engineering | 24 |
Metallurgy | 3 |
Natural sciences | 2 |
Patents | 1 |
Radiobiology | 1 |
Transport | 15 |