PEAT (MINING)
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BTCOAL MINING + OTHER CARBONIFEROUS MINERALS (MINING)
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UDC622.331
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Descriptor GERTORF (BERGBAU)
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Descriptor ENGPEAT (MINING)
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Descriptor FRETOURBE (INDUSTRIE MINIÈRE)
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Variant FREEXPLOITATION/DE LA TOURBE (INDUSTRIE MINIÈRE)
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RTMIRES (PLANT ECOLOGY)