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| operation mode | |||
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| способ эксплуатации: 15 phrases in 12 subjects |
| Drilling | 2 |
| Geology | 1 |
| Geophysics | 2 |
| Makarov | 1 |
| Mass media | 1 |
| Medical | 1 |
| Oil and gas | 1 |
| Oilfields | 1 |
| Patents | 1 |
| Quality control and standards | 1 |
| Rail transport | 1 |
| Sakhalin | 2 |