| |||
| двухлопастное буровое долото (MichaelBurov) | |||
| двухлопастное долото | |||
|
two- blade bit : 13 phrases in 5 subjects |
| General | 1 |
| Oil / petroleum | 5 |
| Oil and gas | 4 |
| Oil and gas technology | 1 |
| Oilfields | 2 |
| |||
| двухлопастное буровое долото (MichaelBurov) | |||
| двухлопастное долото | |||
|
two- blade bit : 13 phrases in 5 subjects |
| General | 1 |
| Oil / petroleum | 5 |
| Oil and gas | 4 |
| Oil and gas technology | 1 |
| Oilfields | 2 |