 |
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| метод монтажа буровой вышки сверху вниз | |||
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from-top- downward method of derrick assembling : 1 phrase in 1 subject |
| Oilfields | 1 |
|
| |||
| метод монтажа буровой вышки сверху вниз | |||
|
from-top- downward method of derrick assembling : 1 phrase in 1 subject |
| Oilfields | 1 |