 |
| ضغط: 48 phrases in 14 subjects |
| Cables and cable production | 1 |
| Electric motors | 2 |
| Electric traction | 1 |
| Electricity generation | 1 |
| Electronics | 18 |
| Environment | 6 |
| Isolation | 1 |
| Lighting other than cinema | 4 |
| Microsoft | 7 |
| Physics | 1 |
| Radio | 2 |
| Sound recording | 1 |
| Vacuum tubes | 2 |
| Wind Energy | 1 |