Conditions for the effective use of milking machines Galia Kokieva, Boris Kurochkin, Marfa Ivanova, Alexandra Fedorova, Kyunne Timofeeva and Irina Borisova E3S Web Conf., 363 (2022) 03056 Published online: 14 December 2022 DOI: 10.1051/e3sconf/202236303056