 |
| |||
| field frequency locking; field locking; vertical frequency locking | |||
|
синхронизация частоты полей : 5 phrases in 1 subject |
| Mass media | 5 |
|
| |||
| field frequency locking; field locking; vertical frequency locking | |||
|
синхронизация частоты полей : 5 phrases in 1 subject |
| Mass media | 5 |