roughness 4 wear 4 знос 4 износ 4 шероховатость 4 шорсткість 4 004.94 2 622.87 2 UDC 621.039 2 UDC 621.891 2 cathode 2 computer simulation 2 condensation at ion bombardment (CIB) 2 cubic boron nitride wheel 2 drum 2 even wear 2 flow accelerated corrosion 2 friction lining 2 friction pair 2 grinding 2 mineral-ceramic layer 2 neural networks 2 optimal microgeometry of the friction surface 2 plunger and spool-and-sleeve pairs 2 precision pairs 2 УДК 620.1 2 УДК 621.039 2 УДК 621.791 2 УДК 621.891 2 барабан 2