 |
| |||
| diamond drill core bit (Yeldar Azanbayev) | |||
| DCB (diamond core bit) | |||
| diamond-drilling core bit; diamond core bit; diamond core slicer (полое долото для вырезания цельных кусков породы; колонковый бур) | |||
| алмазное колонковое долото: 7 phrases in 3 subjects |
| Oil / petroleum | 2 |
| Oil and gas | 4 |
| Oilfields | 1 |