 |
| |||
| industrial waste utilization | |||
| использование промышленных отходов: 7 phrases in 4 subjects |
| Ecology | 2 |
| Energy industry | 1 |
| Makarov | 2 |
| Natural resourses and wildlife conservation | 2 |
|
| |||
| industrial waste utilization | |||
| использование промышленных отходов: 7 phrases in 4 subjects |
| Ecology | 2 |
| Energy industry | 1 |
| Makarov | 2 |
| Natural resourses and wildlife conservation | 2 |