 |
| propagação: 337 phrases in 28 subjects |
| Agriculture | 17 |
| Antennas and waveguides | 6 |
| Chemistry | 5 |
| Coal | 2 |
| Communications | 35 |
| Earth sciences | 22 |
| Electronics | 119 |
| Environment | 7 |
| General | 10 |
| Health care | 10 |
| Industry | 1 |
| Information technology | 13 |
| International Monetary Fund | 1 |
| Life sciences | 22 |
| Materials science | 2 |
| Mechanic engineering | 1 |
| Medical | 8 |
| Metallurgy | 1 |
| Microsoft | 7 |
| Natural resourses and wildlife conservation | 4 |
| Natural sciences | 5 |
| Patents | 1 |
| Physical sciences | 4 |
| Piezoelectric crystals | 2 |
| Radio | 24 |
| Scientific | 2 |
| Superconductivity | 4 |
| Transport | 2 |