| |||
| сточные воды целлюлозно-бумажного производства | |||
|
pulping waste : 5 phrases in 3 subjects |
| Ecology | 2 |
| Natural resourses and wildlife conservation | 2 |
| Pulp and paper industry | 1 |
| |||
| сточные воды целлюлозно-бумажного производства | |||
|
pulping waste : 5 phrases in 3 subjects |
| Ecology | 2 |
| Natural resourses and wildlife conservation | 2 |
| Pulp and paper industry | 1 |