| |||
| задерживающий слой | |||
|
layer of separation : 6 phrases in 4 subjects |
| Aerohydrodynamics | 1 |
| Aviation | 2 |
| Makarov | 1 |
| Oil and gas | 2 |
| |||
| задерживающий слой | |||
|
layer of separation : 6 phrases in 4 subjects |
| Aerohydrodynamics | 1 |
| Aviation | 2 |
| Makarov | 1 |
| Oil and gas | 2 |