 |
| |||
| loss in bends | |||
| потери в коленах и отводах: 3 phrases in 3 subjects |
| Mechanic engineering | 1 |
| Oil / petroleum | 1 |
| Oil and gas technology | 1 |
|
| |||
| loss in bends | |||
| потери в коленах и отводах: 3 phrases in 3 subjects |
| Mechanic engineering | 1 |
| Oil / petroleum | 1 |
| Oil and gas technology | 1 |