propagação : 256 phrases in 23 subjects |
Agriculture | 8 |
Antennas and waveguides | 7 |
Brazil | 4 |
Chemistry | 3 |
Communications | 35 |
Earth sciences | 12 |
Electronics | 107 |
Environment | 6 |
General | 4 |
Health care | 8 |
Industry | 1 |
Information technology | 10 |
Life sciences | 20 |
Materials science | 2 |
Mathematics | 1 |
Mechanic engineering | 1 |
Medical | 1 |
Microsoft | 1 |
Patents | 1 |
Physical sciences | 2 |
Radio | 17 |
Scientific | 3 |
Transport | 2 |