der Azetylenruss
n ацетиленовая сажа (m)
from together https://polygraphy_de_ru.enacademic.com/5177/der_Azetylenruss
source https://newsexchanger.wordpress.com/2020/03/15/der-azetylenruss-2/
via together https://newsexchanger.wordpress.com/2020/03/15/der-azetylenruss-3/
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