 |
| chute de tension: 31 phrases in 15 subjects |
| Antennas and waveguides | 4 |
| Automated equipment | 1 |
| Chemistry | 1 |
| Coal | 1 |
| Earth sciences | 1 |
| Electronics | 8 |
| Health care | 1 |
| Mechanic engineering | 2 |
| Medical | 1 |
| Medical appliances | 1 |
| Power electronics | 5 |
| Power system protection | 1 |
| Technology | 2 |
| Transformers | 1 |
| Vacuum tubes | 1 |