encaixe : 41 phrases in 15 subjects |
Antennas and waveguides | 1 |
Brazil | 2 |
Cables and cable production | 1 |
Chemistry | 4 |
Coal | 1 |
Communications | 1 |
Earth sciences | 5 |
Electronics | 3 |
General | 2 |
Industry | 8 |
Information technology | 1 |
Materials science | 5 |
Metallurgy | 1 |
Patents | 1 |
Transport | 5 |