| |||
| эллиптическое сечение | |||
|
elliptical cross-section : 3 phrases in 3 subjects |
| Geophysics | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| |||
| эллиптическое сечение | |||
|
elliptical cross-section : 3 phrases in 3 subjects |
| Geophysics | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |