Probe of process of multiple-loop chains of parallel and consecutive jointsB. Shаymamоv, D. Rahmatov, M. Khоlмurоdоv, A. Mukhtorov and M. RаkhmamоvаE3S Web of Conf., 216 (2020) 01142DOI: https://doi.org/10.1051/e3sconf/202021601142