 |
| |||
| звуковой тон | |||
| акустический тональный сигнал (oleg.vigodsky) | |||
| audio tone: 10 phrases in 6 subjects |
| Electronics | 4 |
| High frequency electronics | 1 |
| Mass media | 2 |
| Military | 1 |
| Security systems | 1 |
| Technology | 1 |
|
| |||
| звуковой тон | |||
| акустический тональный сигнал (oleg.vigodsky) | |||
| audio tone: 10 phrases in 6 subjects |
| Electronics | 4 |
| High frequency electronics | 1 |
| Mass media | 2 |
| Military | 1 |
| Security systems | 1 |
| Technology | 1 |