rotary drilling: 93 phrases in 16 subjects |
Chemistry | 1 |
Construction | 6 |
Drilling | 7 |
Electronics | 1 |
Geology | 3 |
Gold mining | 4 |
Hydrology | 1 |
Makarov | 1 |
Military | 1 |
Mining | 9 |
Oil / petroleum | 22 |
Oil and gas | 7 |
Oil and gas technology | 7 |
Oilfields | 9 |
Production | 4 |
Technology | 10 |