EXTRACTION OF NATURAL GAS, GASEOUS HYDROCARBON DEPOSITS (MINING)
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BTMINING METHODS + METHODS OF WORKING (MINING)
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UDC622.279
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Descriptor GERGEWINNUNG VON NATURGASEN (BERGBAU)
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Descriptor ENGEXTRACTION OF NATURAL GAS, GASEOUS HYDROCARBON DEPOSITS (MINING)
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Descriptor FREEXTRACTION DE GAZ NATUREL (INDUSTRIE MINIÉRE)
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Variant GERGAS/GEWINNUNG VON NATURGASEN (BERGBAU)
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Variant GERGAS/NATURGAS, GEWINNUNG VON NATURGASEN (BERGBAU)
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Variant GERNATURGAS, GEWINNUNG VON NATURGASEN (BERGBAU)
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Variant ENGGAS/EXTRACTION OF NATURAL GAS, GASEOUS HYDROCARBON DEPOSITS (MINING)
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Variant ENGNATURAL GAS/EXTRACTION OF NATURAL GAS, GASEOUS HYDROCARBON DEPOSITS (MINING)
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Variant FREGAZ/EXTRACTION DE GAZ NATUREL (INDUSTRIE MINIÉRE)
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NTEXTRACTION OF NATURAL GAS (MINING)
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NTSECONDARY PROCESSES FOR NATURAL GAS EXTRACTION (MINING)