TY JOUR TI CARRYING OUT NON-DESTRUCTIVE TESTING OF PISTON-TYPE PUMPS AND COMPRESSORS ACCORDING TO THE DATA OF SHAFT ROTATION AXIS DISPLACEMENT KW nondestructive testing system KW database KW piston machines JO Scientific Papers Collection of the Angarsk State Technical University 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»