 |
| |||
| drive pipe (MichaelBurov); pit wall casing (MichaelBurov) | |||
| cellar pit | |||
| stove pipe (Ulkina) | |||
| шахтовое направление: 3 phrases in 2 subjects |
| Oil / petroleum | 1 |
| Oil and gas technology | 2 |
|
| |||
| drive pipe (MichaelBurov); pit wall casing (MichaelBurov) | |||
| cellar pit | |||
| stove pipe (Ulkina) | |||
| шахтовое направление: 3 phrases in 2 subjects |
| Oil / petroleum | 1 |
| Oil and gas technology | 2 |