Ключевые слова: abstract, architect, architecture, art, background, blue, color, compass, construction, contour, design, designer, divider, draft, drafting, draw, drawing, engineer, engineering, equipment, flat, geometric, geometry, graphic, icon, illustration, instrument, isolated, line, linear, lineart, mathematics, measure, object, office, outline, paper, precision, project, scale, school, science, section, silhouette, sketch, symbol, technical, tool, work,