 |
| ventilação: 215 phrases in 25 subjects |
| Agriculture | 32 |
| Astronautics | 1 |
| Brazil | 1 |
| Chemistry | 3 |
| Coal | 2 |
| Construction | 5 |
| Earth sciences | 7 |
| Electric motors | 4 |
| Electric traction | 1 |
| Electronics | 9 |
| Energy industry | 1 |
| Environment | 3 |
| General | 19 |
| Health care | 3 |
| Industry | 17 |
| Labor law | 3 |
| Life sciences | 1 |
| Materials science | 6 |
| Mechanic engineering | 30 |
| Medical | 4 |
| Municipal planning | 14 |
| Natural sciences | 2 |
| Patents | 3 |
| Technology | 6 |
| Transport | 38 |