interformational
| interformational | |
| geol. | внутриформационный |
| |||
| внутриформационный | |||
| межформационный | |||
|
interformational : 12 phrases in 7 subjects |
| Geology | 4 |
| Geophysics | 1 |
| Makarov | 2 |
| Oil / petroleum | 2 |
| Oilfields | 1 |
| Production | 1 |
| Technology | 1 |