Ключевые слова: action, activity, angle, blade, block, builder, building, cement, circle, circular, concrete, construction, cut, cutter, cutting, danger, diamond, dirty, disc, disk, dust, electric, electrical, equipment, granite, grinder, grinding, hand, industrial, industry, instrument, job, machine, machine tool, man, material, power, professional, rock, rotation, saw, sawing, stone, surface, tile, tiles, tool, wheel, work, worker,