 |
| |||
| dust control | |||
| борьба c пылью: 17 phrases in 5 subjects |
| Mining | 13 |
| Natural resourses and wildlife conservation | 1 |
| Occupational health & safety | 1 |
| Oil / petroleum | 1 |
| Technology | 1 |
|
| |||
| dust control | |||
| борьба c пылью: 17 phrases in 5 subjects |
| Mining | 13 |
| Natural resourses and wildlife conservation | 1 |
| Occupational health & safety | 1 |
| Oil / petroleum | 1 |
| Technology | 1 |