Ключевые слова: action, activity, angle, blade, body, builder, building, cement, circle, circular, cleaning, concrete, construction, craft, cut, cutoff, cutter, cutting, disc, disk, dust, electric, engineering, equipment, finishing, floor, grinder, grinding, hands, horizontal, human, industrial, industry, job, machine, machinery, material, millwright, motion, mounter, polishing, power, saw, side, site, stone, tool, uniform, work, worker,