 |
| |||
| return valve | |||
| клапан возврата: 30 phrases in 9 subjects |
| Astronautics | 3 |
| Aviation | 1 |
| Caspian | 1 |
| Construction | 1 |
| Electrical engineering | 1 |
| Gas processing plants | 1 |
| Mechanics | 2 |
| Refrigeration | 1 |
| Technology | 19 |
|
| |||
| return valve | |||
| клапан возврата: 30 phrases in 9 subjects |
| Astronautics | 3 |
| Aviation | 1 |
| Caspian | 1 |
| Construction | 1 |
| Electrical engineering | 1 |
| Gas processing plants | 1 |
| Mechanics | 2 |
| Refrigeration | 1 |
| Technology | 19 |