Ключевые слова: architect, architecture, background, business, circle, college, compass, construction, design, divider, draft, drafting, draw, drawing, education, engineer, engineering, equipment, flat, geometric, geometry, graph, graphic, hand drawn, icon, illustration, instrument, isolated, learning, line, linear, math, mathematics, measure, minimal, outline, pencil, precision, project, red, scale, school, science, sign, study, supplies, technical, tool, white,