 |
| |||
| конструкция поисковой скважины | |||
|
exploratory well casing program : 2 phrases in 2 subjects |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
|
| |||
| конструкция поисковой скважины | |||
|
exploratory well casing program : 2 phrases in 2 subjects |
| Oil and gas | 1 |
| Oil and gas technology | 1 |