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| water well (для проведения испытаний на участке подземной газификации) | |||
| water well | |||
| ground-water well (lxu5) | |||
| hydrogeological well (Johnny Bravo) | |||
| гидрогеологическая скважина: 8 phrases in 5 subjects |
| Drilling | 1 |
| Geology | 1 |
| Geophysics | 2 |
| Oil / petroleum | 3 |
| Oil and gas | 1 |