 |
| cavidad: 177 phrases in 24 subjects |
| Accumulators | 1 |
| Agriculture | 1 |
| Antennas and waveguides | 5 |
| Chemistry | 4 |
| Communications | 5 |
| Earth sciences | 8 |
| Electronics | 14 |
| Environment | 1 |
| General | 24 |
| Health care | 5 |
| Hobbies and pastimes | 1 |
| Industry | 3 |
| Information technology | 5 |
| Life sciences | 4 |
| Mechanic engineering | 2 |
| Medical | 52 |
| Metallurgy | 16 |
| Natural sciences | 13 |
| Physical sciences | 2 |
| Radiology | 1 |
| Superconductivity | 1 |
| Technology | 1 |
| Thermal Energy | 5 |
| Transport | 3 |