WOOD + NATURAL SOLID FUELS (FUEL TECHNOLOGY)
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BTSOLID FUELS (FUEL TECHNOLOGY)
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BTUTILIZATION OF BIOLOGICAL ENERGY (ENERGY TECHNOLOGY)
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UDC662.71/.74*0
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Descriptor GERHOLZ + FESTE NATÜRLICHE BRENNSTOFFE (BRENNSTOFFTECHNOLOGIE)
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Descriptor ENGWOOD + NATURAL SOLID FUELS (FUEL TECHNOLOGY)
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Descriptor FREBOIS + COMBUSTIBLES SOLIDES NATURELS (TECHNOLOGIE DES COMBUSTIBLES)
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Variant GERFESTE NATÜRLICHE BRENNSTOFFE (BRENNSTOFFTECHNOLOGIE)
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Variant GERBRENNSTOFFE/FESTE NATÜRLICHE BRENNSTOFFE (BRENNSTOFFTECHNOLOGIE)
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Variant GERKRAFTSTOFFE/FESTE NATÜRLICHE KRAFTSTOFFE (BRENNSTOFFTECHNOLOGIE)
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Variant GERNATÜRLICHE BRENNSTOFFE/FESTE NATÜRLICHE BRENNSTOFFE (BRENNSTOFFTECHNOLOGIE)
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Variant ENGSOLID FUELS/NATURAL SOLID FUELS (FUEL TECHNOLOGY)
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Variant ENGNATURAL SOLID FUELS (FUEL TECHNOLOGY)
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Variant ENGFUELS/NATURAL SOLID FUELS (FUEL TECHNOLOGY)
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Variant FRECOMBUSTIBLES SOLIDES NATURELS (TECHNOLOGIE DES COMBUSTIBLES)
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Variant FRENATURELS/COMBUSTIBLES SOLIDES NATURELS (TECHNOLOGIE DES COMBUSTIBLES)
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NTFIREWOOD (FOREST PRODUCTS)
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NTCHARCOAL + CHARCOAL PRODUCTION (FUEL TECHNOLOGY)
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NTSTRAW/FUEL TECHNOLOGY
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NTGASIFICATION OF WOOD AND VEGETABLE FUELS (FUEL TECHNOLOGY)
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RTENERGY CROPS (CROP PRODUCTION)