 |
| |||
| dust quantity | |||
| количество пыли: 8 phrases in 5 subjects |
| Automobiles | 1 |
| Energy industry | 2 |
| Geology | 1 |
| Mechanic engineering | 1 |
| Natural resourses and wildlife conservation | 3 |
|
| |||
| dust quantity | |||
| количество пыли: 8 phrases in 5 subjects |
| Automobiles | 1 |
| Energy industry | 2 |
| Geology | 1 |
| Mechanic engineering | 1 |
| Natural resourses and wildlife conservation | 3 |