Ключевые слова: abstract, amplifying, background, beige, blue, blur, brown, business, circle, closeup, cog, cogged, cogs, cogwheel, concept, connect, cooperation, curve, detail, different, digit, distance, engine, engineering, engineering tolerance, equipment, gauge, gear, gearbox, gears, gearwheel, hand, hole, indicator, industry, instrument, interlock, involute, iron, machinery, macro, measuring, mechanical, mechanism, metal, metallic, needle, no people, nopeople, ocher, part, parts, pointer, precision, quality, research, rotate, round, scale, science, spare, steel, teamwork, technical, technology, teeth, wheel, wheels, work,