| |||
| частота звуковых сигналов | |||
|
audio-signals frequency : 8 phrases in 6 subjects |
| Automated equipment | 1 |
| Electronics | 2 |
| Geophysics | 1 |
| Makarov | 1 |
| Measuring instruments | 1 |
| Technology | 2 |
| |||
| частота звуковых сигналов | |||
|
audio-signals frequency : 8 phrases in 6 subjects |
| Automated equipment | 1 |
| Electronics | 2 |
| Geophysics | 1 |
| Makarov | 1 |
| Measuring instruments | 1 |
| Technology | 2 |