 |
| |||
| принцип противотока | |||
| counterflow principle: 2 phrases in 2 subjects |
| Natural resourses and wildlife conservation | 1 |
| Refrigeration | 1 |
|
| |||
| принцип противотока | |||
| counterflow principle: 2 phrases in 2 subjects |
| Natural resourses and wildlife conservation | 1 |
| Refrigeration | 1 |