Ключевые слова: abstract, background, blank, blue, border, chain, design, drawing, element, empty, equipment, fence, graph, graphic, grid, grunge, idea, instrument, isolated, level, line, lines, measurement, metal, new, paper, pattern, pen, pencil, plan, print, protractor, ruler, safety, seamless, security, sheet, space, strong, system, tape, texture, tile, urban, wall, wallpaper, water, white, work,