 |
| |||
| background suppression | |||
| background rejection | |||
| hum suppression (от сети переменного тока) | |||
| подавление фона: 13 phrases in 8 subjects |
| Cables and cable production | 1 |
| Electronics | 1 |
| Makarov | 2 |
| Mass media | 2 |
| Nanotechnology | 2 |
| Radio | 1 |
| Technology | 3 |
| Telecommunications | 1 |