 |
| |||
| частота питания электросети (ssn) | |||
| |||
| промышленные частоты | |||
| power supply frequency: 5 phrases in 5 subjects |
| Astronautics | 1 |
| Electrical engineering | 1 |
| Electronics | 1 |
| Mass media | 1 |
| Telecommunications | 1 |
|
| |||
| частота питания электросети (ssn) | |||
| |||
| промышленные частоты | |||
| power supply frequency: 5 phrases in 5 subjects |
| Astronautics | 1 |
| Electrical engineering | 1 |
| Electronics | 1 |
| Mass media | 1 |
| Telecommunications | 1 |