 |
| air classifier: 17 phrases in 8 subjects |
| Aerohydrodynamics | 1 |
| Energy industry | 1 |
| Makarov | 1 |
| Mining | 8 |
| Natural resourses and wildlife conservation | 1 |
| Silicate industry | 1 |
| Technology | 3 |
| Thermal engineering | 1 |
|
| air classifier: 17 phrases in 8 subjects |
| Aerohydrodynamics | 1 |
| Energy industry | 1 |
| Makarov | 1 |
| Mining | 8 |
| Natural resourses and wildlife conservation | 1 |
| Silicate industry | 1 |
| Technology | 3 |
| Thermal engineering | 1 |