VENTILATION AND AIR-CONDITIONING OF MINES (MINING)
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BTVENTILATION + AIR CONDITIONING +LIGHTING (MINING)
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UDC622.41
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Descriptor GERGRUBENWETTER (BERGBAU)
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Descriptor ENGVENTILATION AND AIR-CONDITIONING OF MINES (MINING)
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Descriptor FREAÉRATION, CONDITIONNEMENT D'AIR EN GÉNÉRAL (INDUSTRIE MINIÈRE)
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Variant FREATMOSPHÈRE DES MINES (INDUSTRIE MINIÈRE)
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NTGASES ENCOUNTERED IN MINES (MINING)
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NTMINE DUSTS + SOURCES OF DUST FORMATION (MINING)