TY JOUR TI A Few Remarks About the Most Important Element of Metrology — Person KW metrologist KW metrology KW two-phase system KW concentration environment KW chaos environment KW average failure rate KW concentration function KW concentration assurance JO Intellectual Technologies on Transport AU Smagin, V.A. AU Бубнов, V.P. PY 2022 IS 0 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"