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| channel sample (напр., channel samples across the mineralized zones indicate that they are 5 to 30m wide Leonid Dzhepko); trench sample (по способу отбора MichaelBurov) | |||
| trench sample | |||
| бороздовая проба: 14 phrases in 2 subjects |
| Geology | 1 |
| Gold mining | 13 |