EISENBAHNTUNNEL (TUNNELBAU)
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BTVERKEHRSTUNNEL (TUNNELBAU)
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UDC624.195,1
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Descriptor GEREISENBAHNTUNNEL (TUNNELBAU)
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Descriptor ENGRAILWAY TUNNELS (TUNNELLING)
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Descriptor FRETUNNELS FERROVIAIRES (CONSTRUCTION DE TUNNELS)
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Variant GERTUNNEL/EISENBAHNTUNNEL (TUNNELBAU)
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Variant ENGTUNNELS/RAILWAY TUNNELS (TUNNELLING)
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Variant FRECHEMIN DE FER/TUNNELS DE CHEMIN DE FER (CONSTRUCTION DE TUNNELS)
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Variant FREFERROVIAIRE/TUNNELS FERROVIAIRES (CONSTRUCTION DE TUNNELS)