 |
| |||
| horizontal-flow precipitator | |||
| horizontal filter (makhno) | |||
| горизонтальный фильтр: 7 phrases in 7 subjects |
| Gyroscopes | 1 |
| Mineral processing | 1 |
| Mining | 1 |
| Natural resourses and wildlife conservation | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oilfields | 1 |
|
| |||
| horizontal-flow precipitator | |||
| horizontal filter (makhno) | |||
| горизонтальный фильтр: 7 phrases in 7 subjects |
| Gyroscopes | 1 |
| Mineral processing | 1 |
| Mining | 1 |
| Natural resourses and wildlife conservation | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oilfields | 1 |