 |
| |||
| винтовой забойный двигатель (used by Russian authors only Alexander Demidov) | |||
| винтовой забойный двигатель (Mosley Leigh) | |||
| downhole screw motor: 9 phrases in 5 subjects |
| Oil / petroleum | 2 |
| Oil and gas | 2 |
| Oil and gas technology | 1 |
| Production | 1 |
| Technology | 3 |
|
| |||
| винтовой забойный двигатель (used by Russian authors only Alexander Demidov) | |||
| винтовой забойный двигатель (Mosley Leigh) | |||
| downhole screw motor: 9 phrases in 5 subjects |
| Oil / petroleum | 2 |
| Oil and gas | 2 |
| Oil and gas technology | 1 |
| Production | 1 |
| Technology | 3 |