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 |