43.060.40 Fuel systems / Топливные системы, 71.100.20 Gases. Including compressed air and hydrogen / Газы промышленного применения. Включая сжатый воздух
Ключевые слова:
Exchange, Grades (quality), Road vehicles, Chemical composition, Membranes, Hydrogen, Protons, Energy technology, Electric cells, Verification, Impurities, Automotive fuels, Fuel cells