 |
| إشارة: 359 phrases in 22 subjects |
| Automatic control | 21 |
| Cables and cable production | 3 |
| Electrical engineering | 2 |
| Electricity generation | 1 |
| Electronics | 42 |
| Lighting other than cinema | 9 |
| Magnetics | 1 |
| Microsoft | 13 |
| Piezoelectric crystals | 2 |
| Power lines | 41 |
| Power system protection | 9 |
| Radio | 50 |
| Radiobiology | 2 |
| Rail transport | 48 |
| Satellite communications | 1 |
| Sound recording | 6 |
| Statistics | 1 |
| Telecommunications | 55 |
| Telegraphy | 46 |
| Telephony | 1 |
| Vacuum tubes | 1 |
| Video recording | 4 |