 |
| |||
| plate-forme de forage; tour de forage | |||
| machine de forage | |||
| outils de forage | |||
| installation de forage | |||
| |||
| tours de forage | |||
| drilling rig: 22 phrases in 7 subjects |
| Coal | 1 |
| Construction | 4 |
| Industry | 2 |
| Metallurgy | 2 |
| Natural resourses and wildlife conservation | 1 |
| Oil / petroleum | 11 |
| United Nations | 1 |