Ключевые слова: 3d, abstract, art, background, blueprint, business, circle, cog, cogwheel, communication, concept, construction, design, diagram, draft, drawing, element, engine, engineer, engineering, equipment, frame, gear, graphic, icon, illustration, industrial, industry, invention, line, machine, machinery, mechanic, mechanical, mechanism, model, motor, outline, parts, pattern, sketch, symbol, system, tech, technical, technology, template, web, white,