Ключевые слова: cad, circle, cogwheel, component, concept, connected, construction, cooperating, correspond, design, detail, device, drafting, draw, drawing, element, engine, engineering, equipment, gearing, graphic, idea, industrial, interlock, join, machinery, mechanical, mechanism, metal, moving, office, paper, pattern, pencil, precision, project, ratchet, simultaneous, sketch, socket, sprocket, structure, synchronized, table, technical, technology, tool, wheel, wrench,