TY JOUR TI On the Reliability of the Results of Measurements of the Residual Thickness of the Metal Elements Gates and Valve of Navigation Locks in Operation by the Ultrasonic Method KW ultrasonic wall thickness testing KW navigation lock KW gate KW valve KW operation KW corrosion KW residual thickness KW precision of measurements KW technical condition. JO NDT World AU Kuzmitskiy, M.L. AU Ksenofontov, N.M. PY 2020 IS 23 PB LLC SVEN