 |
| |||
| спуск незаполненной буровым раствором / порожней обсадной колонны | |||
| floating casing: 12 phrases in 5 subjects |
| Geology | 1 |
| Mining | 2 |
| Oil / petroleum | 4 |
| Oil and gas | 1 |
| Oil and gas technology | 4 |
|
| |||
| спуск незаполненной буровым раствором / порожней обсадной колонны | |||
| floating casing: 12 phrases in 5 subjects |
| Geology | 1 |
| Mining | 2 |
| Oil / petroleum | 4 |
| Oil and gas | 1 |
| Oil and gas technology | 4 |