 |
| |||
| слышимый тон | |||
| слышимый звук | |||
| слышимый шум | |||
| audible sound: 8 phrases in 5 subjects |
| Astronautics | 1 |
| Information security and data protection | 1 |
| Security systems | 3 |
| Technology | 2 |
| Telecommunications | 1 |
|
| |||
| слышимый тон | |||
| слышимый звук | |||
| слышимый шум | |||
| audible sound: 8 phrases in 5 subjects |
| Astronautics | 1 |
| Information security and data protection | 1 |
| Security systems | 3 |
| Technology | 2 |
| Telecommunications | 1 |