 |
| sobretensión: 67 phrases in 16 subjects |
| Cables and cable production | 1 |
| Chemistry | 5 |
| Communications | 3 |
| Earth sciences | 4 |
| Electric machinery | 1 |
| Electric traction | 1 |
| Electricity generation | 8 |
| Electrochemistry | 1 |
| Electronics | 32 |
| Energy industry | 1 |
| General | 1 |
| Information technology | 5 |
| Magnetics | 1 |
| Metallurgy | 1 |
| Patents | 1 |
| Transport | 1 |