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