Ключевые слова: architectural, background, blank, blue, blueprint, board, bulletin, centimeters, cut, design, detail, drawing, equipment, geometric, geometry, graph, graphic, grid, guides, illustration, inches, industrial, length, line, mat, math, measure, measurement, metric, office, paper, patchwork, pattern, print, safe, scale, science, sheet, space, technology, texture, tools, white, width,