 |
| |||
| падение давления; перепад давления | |||
| chute du pression: 5 phrases in 3 subjects |
| Hydraulic engineering | 3 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 1 |
|
| |||
| падение давления; перепад давления | |||
| chute du pression: 5 phrases in 3 subjects |
| Hydraulic engineering | 3 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 1 |