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| забойный клапан-отсекатель, управляемый потоком | |||
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subsurface -controlled safety valve : 42 phrases in 8 subjects |
| Caspian | 1 |
| Oil / petroleum | 6 |
| Oil and gas | 21 |
| Oil and gas technology | 5 |
| Oilfields | 2 |
| Sakhalin | 5 |
| Technology | 1 |
| Tengiz | 1 |
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