Ключевые слова: align, architect, architectural, backdrop, background, blank, blue, blueprint, checkered, cm, cross, drafting, engineer, geometric, graph, graphpaper, grid, layout, line, lined, loose leaf, mark, math, mathematics, measure, millimeter, mm, note, notebook, notepad, page, paper, pattern, plan, plotting, regular grid, ruled, scale, school, science, seamless, sheet, sketch, square, technical, university, white, write,