 |
| |||
| gun-microphone (эхолота) | |||
| излучатель-приёмник: 6 phrases in 6 subjects |
| Automated equipment | 1 |
| General | 1 |
| Geophysics | 1 |
| Metallurgy | 1 |
| Quality control and standards | 1 |
| Security systems | 1 |
|
| |||
| gun-microphone (эхолота) | |||
| излучатель-приёмник: 6 phrases in 6 subjects |
| Automated equipment | 1 |
| General | 1 |
| Geophysics | 1 |
| Metallurgy | 1 |
| Quality control and standards | 1 |
| Security systems | 1 |