 |
| |||
| biological oxygen demand | |||
| биологическая потребность кислорода: 13 phrases in 7 subjects |
| Caspian | 1 |
| Chemistry | 1 |
| Ecology | 2 |
| Hydrology | 1 |
| Makarov | 2 |
| Sakhalin | 1 |
| Weapons of mass destruction | 5 |
|
| |||
| biological oxygen demand | |||
| биологическая потребность кислорода: 13 phrases in 7 subjects |
| Caspian | 1 |
| Chemistry | 1 |
| Ecology | 2 |
| Hydrology | 1 |
| Makarov | 2 |
| Sakhalin | 1 |
| Weapons of mass destruction | 5 |