 |
| |||
| частота тока сети (petr1k) | |||
|
net frequency : 9 phrases in 7 subjects |
| Air defense | 1 |
| Geophysics | 1 |
| Mass media | 1 |
| Metrology | 1 |
| Military | 1 |
| Technology | 2 |
| Telecommunications | 2 |
|
| |||
| частота тока сети (petr1k) | |||
|
net frequency : 9 phrases in 7 subjects |
| Air defense | 1 |
| Geophysics | 1 |
| Mass media | 1 |
| Metrology | 1 |
| Military | 1 |
| Technology | 2 |
| Telecommunications | 2 |