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protective casing (морских скважин) | |||
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protective casing | |||
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conductor (twinkie) |
колонна-направление : 19 phrases in 9 subjects |
General | 1 |
Karachaganak | 1 |
Makarov | 2 |
Military | 2 |
Mining | 2 |
Oil / petroleum | 3 |
Oil and gas | 4 |
Oilfields | 3 |
Technology | 1 |