TY JOUR TI RELIABILITY ANALYSIS OF THE MACHINE SYSTEM AT SMALL-SIZE THREADING IN DEEP HOLES KW reliability KW system KW state graph KW simulation model KW verification JO Transport engineering AU Mirzoyan, N.Y. AU Kharchenko, A.O. AU Zamoryonov, M.V. PY 2025 IS 2025 PB Bryansk State Technical University