TY JOUR TI Strain-gauge sets for studying of power parametres of working bodies of soil-cultivating tool KW strain-gauge set KW volume strain-gaging KW cultivator attachment KW draught resistance JO Actual directions of scientific researches of the XXI century: theory and practice AU Dochkin, A.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov