 |
| |||
| методы исследования шума; методы снижения шума | |||
| noise technology: 6 phrases in 5 subjects |
| Astronautics | 1 |
| Aviation | 2 |
| Ecology | 1 |
| Environment | 1 |
| Technology | 1 |
|
| |||
| методы исследования шума; методы снижения шума | |||
| noise technology: 6 phrases in 5 subjects |
| Astronautics | 1 |
| Aviation | 2 |
| Ecology | 1 |
| Environment | 1 |
| Technology | 1 |