 |
| dispersão: 197 phrases in 25 subjects |
| Agriculture | 1 |
| Antennas and waveguides | 4 |
| Brazil | 1 |
| Chemistry | 10 |
| Communications | 18 |
| Earth sciences | 13 |
| Electronics | 81 |
| Environment | 5 |
| Finances | 1 |
| General | 9 |
| Health care | 1 |
| Industry | 5 |
| Information technology | 8 |
| Life sciences | 6 |
| Mathematics | 5 |
| Mechanic engineering | 1 |
| Medical | 1 |
| Metallurgy | 2 |
| Municipal planning | 2 |
| Natural sciences | 1 |
| Satellite communications | 1 |
| Statistics | 18 |
| Technology | 1 |
| Transport | 1 |
| Vacuum tubes | 1 |