Ключевые слова: achievement, application, background, business, button, circle, clock, cogwheel, computer, concept, connection, design, element, engine, engineering, equipment, factory, flat, gear, icon, illustration, industrial, industry, internet, machine, mechanical, mechanics, mechanism, modern, office, options, progress, repair, service, setting, settings, shape, sign, sprocket, support, symbol, system, technical, technology, tool, web, wheel, work,