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Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 1, pp. 13–14, January–February, 1997.
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Antipov, S.T., Mosolov, G.I., Shakov, S.V. et al. Development of vacuum units for the charging and discharging of powder materials. Chem Petrol Eng 33, 11–13 (1997). https://doi.org/10.1007/BF02416772
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DOI: https://doi.org/10.1007/BF02416772