Ключевые слова: apparatus, arrangement, background, circle, clock, clockwork, cogwheel, concept, connection, cooperation, design, development, energy, engine, engineering, equipment, gear, geometric, idea, industrial, industry, machine, machinery, mechanical, mechanics, mechanism, metal, metallic, motion, old, part, pinion, power, precision, shapes, silver, steel, strength, studio, teamwork, technology, teeth, time, tools, transmission, watch, wheel, white, work,