Ключевые слова: abstract, blue, chemistry, clinic, colorful, coloring, colors, craft, creativity, cut out, deep, design, diagnostic, electricity, factory, green, group, imagination, indoors, machinery, many, metal, motorbike, no people, part, pipeline, plate, product, purple, rack, rainbow, red, refinery, research, row, sample, science, shape, shiny, simplicity, sketch, spare, stack, steel, technology, test, tool, tube, tubes, variation,