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| инженерно-геологическая выработка | |||
| опробовательная скважина | |||
| разведочная скважина; опережающая скважина (длиной не менее 25 м) | |||
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otwór badawczy : 4 phrases in 2 subjects |
| Construction | 2 |
| Mining | 2 |
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