Synonyme wurden verwendet für:
Kohle
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keywords:(Kohle)
Research and development opportunities for improved transportation energy usage (REDOTEUS)
Ueber die Vergasungskinetik von Koks mit Kohlenoxid-Kohlendioxid-Gemischen
Pacific Lightung figures naptha "SNG" plant requires least investment
Progress in railway mechanical engineering (1973-1974 Report of survey committee) cars and equipment