Ключевые слова: a4, a5, a6, architect, architecture, b5, b6, background, black, centimeter, clean, design, detailed, draft, draw, drawing, engineer, engineering, format, graph, graphing, grid, inch, length, line, measure, measurement, mechanics, meter, millimeter, notebook, paper, pattern, plan, precise, regular, repeat, scale, scrapbook, square, technical, white,