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стыковочная втулка
| блока превенторов
| стыковочная втулка | |
| O&G. tech. | hub |
| блок превентора | |
| O&G O&G, oilfield. | BOP stack |
| блок превенторов | |
| dril. | blowout preventer stack |
| oil | preventer stack |
| |||
| hub | |||
| clamp hub; connector hub | |||
| стыковочная втулка: 5 phrases in 3 subjects |
| General | 1 |
| Oil / petroleum | 3 |
| Oil and gas technology | 1 |