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| дно шпура; донная часть скважины; донная часть шпура | |||
| дно скважины | |||
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hole back : 16 phrases in 9 subjects |
| General | 1 |
| Geology | 1 |
| Makarov | 2 |
| Mining | 5 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Technology | 2 |
| Vulgar | 2 |
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