| |||
| буровое оборудование; наконечник бура в сборе | |||
| сборка долото (Yeldar Azanbayev) | |||
|
bit assembly : 28 phrases in 8 subjects |
| Geology | 1 |
| Military | 3 |
| Oil / petroleum | 8 |
| Oil and gas | 5 |
| Oil and gas technology | 1 |
| Technology | 6 |
| Telecommunications | 2 |
| Transport | 2 |