 |
| |||
| echo pulse | |||
| echo | |||
| импульс-эхо: 20 phrases in 9 subjects |
| Acoustics | 1 |
| General | 1 |
| Makarov | 2 |
| Medical | 6 |
| Quality control and standards | 1 |
| Radiolocation | 6 |
| Shipbuilding | 1 |
| Technology | 1 |
| Weapons of mass destruction | 1 |
|
| |||
| echo pulse | |||
| echo | |||
| импульс-эхо: 20 phrases in 9 subjects |
| Acoustics | 1 |
| General | 1 |
| Makarov | 2 |
| Medical | 6 |
| Quality control and standards | 1 |
| Radiolocation | 6 |
| Shipbuilding | 1 |
| Technology | 1 |
| Weapons of mass destruction | 1 |