 |
| |||
| screw downhole motor; screw hydraulic downhole motor | |||
| screw hydraulic motor | |||
| гидровинтовой забойный двигатель: 6 do fraz, 4 tematyki |
| Olej i gaz | 2 |
| Ropa / ropa naftowa | 1 |
| Technika i technologia | 1 |
| Technologia ropy i gazu | 2 |
|
| |||
| screw downhole motor; screw hydraulic downhole motor | |||
| screw hydraulic motor | |||
| гидровинтовой забойный двигатель: 6 do fraz, 4 tematyki |
| Olej i gaz | 2 |
| Ropa / ropa naftowa | 1 |
| Technika i technologia | 1 |
| Technologia ropy i gazu | 2 |