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| two-stack system (состоящая из двух блоков противовыбросовых превенторов и двух водоотделяющих колонн) | |||
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двухблочная система : 5 phrases in 4 subjects |
| Drilling | 1 |
| Oil / petroleum | 2 |
| Oil and gas | 1 |
| Technology | 1 |
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