TY CONF TI ABOUT CLASSIFICATION FEATURES OF GRINDING MACHINES KW plantation forests KW chopping machine KW energy wood KW wood waste grinding JO MODERN FORESTRY COMPLEX OF THE COUNTRY: INNOVATIVE DEVELOPMENTS AND PROGRESSIVE TECHNOLOGIES AU Fokin, S.V. AU Shport'ko, O.N. PY 2025 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov