 |
| barreira: 150 phrases in 38 subjects |
| Agriculture | 3 |
| Antennas and waveguides | 1 |
| Brazil | 1 |
| Cables and cable production | 1 |
| Chemistry | 2 |
| Coal | 1 |
| Commerce | 3 |
| Communications | 5 |
| Construction | 5 |
| Earth sciences | 4 |
| Education | 1 |
| Electric machinery | 1 |
| Electronics | 33 |
| Environment | 21 |
| Finances | 3 |
| General | 7 |
| Health care | 3 |
| Industry | 4 |
| Information technology | 2 |
| Insurance | 2 |
| Investment | 1 |
| Labor law | 1 |
| Law | 1 |
| Life sciences | 2 |
| Materials science | 3 |
| Mathematics | 2 |
| Mechanic engineering | 4 |
| Medical | 2 |
| Microsoft | 1 |
| Natural sciences | 1 |
| Radio | 1 |
| Radiobiology | 1 |
| Radiology | 5 |
| Rail transport | 4 |
| Semiconductors | 1 |
| Social science | 1 |
| Statistics | 3 |
| Transport | 13 |