| |||
| ударное долото | |||
| бур ударного перфоратора; долото ударного бурения | |||
|
percussion bit : 9 phrases in 4 subjects |
| Oil / petroleum | 3 |
| Oil and gas | 2 |
| Oil and gas technology | 2 |
| Oilfields | 2 |
| |||
| ударное долото | |||
| бур ударного перфоратора; долото ударного бурения | |||
|
percussion bit : 9 phrases in 4 subjects |
| Oil / petroleum | 3 |
| Oil and gas | 2 |
| Oil and gas technology | 2 |
| Oilfields | 2 |