 |
| |||
| downhole drilling; downhole hammer drilling | |||
| down-the-hole drilling; down-the-hole | |||
| бурение с погружным пневмоударником: 2 phrases in 2 subjects |
| Drilling | 1 |
| Oil / petroleum | 1 |
|
| |||
| downhole drilling; downhole hammer drilling | |||
| down-the-hole drilling; down-the-hole | |||
| бурение с погружным пневмоударником: 2 phrases in 2 subjects |
| Drilling | 1 |
| Oil / petroleum | 1 |