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| ground formation (Device for making a lateral opening out of a wellbore in a ground formation I. Havkin) | |||
| subsurface (dimock) | |||
| подземный пласт: 18 phrases in 8 subjects |
| Construction | 1 |
| Gas processing plants | 5 |
| Hydraulic engineering | 1 |
| Oil / petroleum | 3 |
| Oil and gas | 4 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Sakhalin | 2 |