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| блок противовыбросовых превенторов | |||
| блок превенторов | |||
| установка блока превентора (Yeldar Azanbayev) | |||
| preventer stack: 22 phrases in 8 subjects |
| Drilling | 1 |
| General | 1 |
| Mining | 1 |
| Oil / petroleum | 12 |
| Oil and gas | 3 |
| Oil and gas technology | 2 |
| Production | 1 |
| Technology | 1 |