 |
| |||
| two-blade bit (MichaelBurov) | |||
| fishtail drill bit; fishtail drilling bit; two-blade drag drilling bit; two-wing drag drilling bit | |||
| двухлопастное буровое долото: 10 phrases in 4 subjects |
| General | 1 |
| Oil / petroleum | 3 |
| Oil and gas | 5 |
| Oilfields | 1 |
|
| |||
| two-blade bit (MichaelBurov) | |||
| fishtail drill bit; fishtail drilling bit; two-blade drag drilling bit; two-wing drag drilling bit | |||
| двухлопастное буровое долото: 10 phrases in 4 subjects |
| General | 1 |
| Oil / petroleum | 3 |
| Oil and gas | 5 |
| Oilfields | 1 |