VARIOUS OTHER METHODS OF WORKING (MINING)
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BTEXCAVATION WORK + ROCK DRILLING (MINING)
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UDC622.234
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Descriptor GERSONSTIGE GEWINNUNGSVERFAHREN (BERGBAU)
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Descriptor ENGVARIOUS OTHER METHODS OF WORKING (MINING)
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Descriptor FREDIVERSES AUTRES MÉTHODES D'ABATTAGE (INDUSTRIE MINIÈRE)
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Variant GERGEWINNUNGSVERFAHREN/SONSTIGE GEWINNUNGSVERFAHREN (BERGBAU)
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Variant ENGWORKING/VARIOUS OTHER METHODS OF WORKING (MINING)
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Variant FREEXTRACTION, AUTRES METHODES D'EXTRACTION (INDUSTRIE MINIÈRE)
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NTWORKING BY FREEZING (MINING)
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NTPNEUMATIC WORKING + COMPRESSED AIR METHODS + AIRDOX (MINING)
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NTCHEMICAL METHODS + LEACHING + UNDERGROUND SOLUTION (MINING)
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NTHYDRAULIC MINING (MINING)
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NTTHERMAL WORKING BY HEATING, FIRE (MINING)