TY JOUR TI ON CARRYING OUT NON-DESTRUCTIVE TESTING OF PISTON-TYPE PUMPS AND COMPRESSORS ON THE DATA OF SHAFT ROTATION AXIS DISPLACEMENT KW nondestructive testing system KW database KW piston machines JO Modern Technologies and Scientific and Technological Progress AU El'hutov, S.N. AU Lucenko, P.V. PY 2022 IS 2022 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»