|
dust separator : 12 phrases in 9 subjects |
| Construction | 1 |
| Ecology | 2 |
| Leather | 1 |
| Metallurgy | 1 |
| Natural resourses and wildlife conservation | 1 |
| Oil / petroleum | 1 |
| Oilfields | 1 |
| Technology | 3 |
| Wood processing | 1 |
|
dust separator : 12 phrases in 9 subjects |
| Construction | 1 |
| Ecology | 2 |
| Leather | 1 |
| Metallurgy | 1 |
| Natural resourses and wildlife conservation | 1 |
| Oil / petroleum | 1 |
| Oilfields | 1 |
| Technology | 3 |
| Wood processing | 1 |