| |||
| центрирование бурового долота | |||
|
bit centering : 4 phrases in 4 subjects |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Technology | 1 |
| |||
| центрирование бурового долота | |||
|
bit centering : 4 phrases in 4 subjects |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Technology | 1 |