Kulikov, O.A., Ratushnyi, O.V., Ivchenko, O.V., Kozin, V.M., Fesenko, D.I. and Zhyhylii, D.O. 2024. CHARACTERISTIC FIELDS OF COUNTER-ROTATING HYDROTURBINE STAGES. Bulletin of Sumy National Agrarian University. The series: Mechanization and Automation of Production Processes. 1 (55) (Apr. 2024), 46-54. DOI:https://doi.org/10.32782/msnau.2024.1.6.