Ключевые слова: abstract, assembly, automation, background, black, blueprint, colorful, component, concept, connection, creative, design, development, education, efficiency, energy, engineering, equipment, gear, gearbox, gears, gearwheel, hardware, industry, innovation, machine, manufacture, mechanical, mechanism, model, object, part, pattern, plastic, power, precision, process, rotation, round, science, solution, structure, system, teamwork, technical, technology, tools, toy,