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fossil fuel ☊
fossiler Brennstoff ☊ < 13.25 Gesteine, Bodenschätze
Fuel cell ☊
Brennstoffzelle ☊ < 19.19 Energieversorgung
Nuclear fuel ☊
Kernbrennstoff ☊ < 19.20 Atomenergie
Fuel trade ☊
Brennstoffhandel ☊ < 20.30 Handel