Ключевые слова: accuracy, background, black, building, centimeter, closeup, concept, construction, distance, element, equipment, exact, horizontal, illustration, inch, industry, instrument, isolated, length, level, line, long, measure, measurement, measuring, metal, meter, metric, millimeter, number, object, precision, realistic, roulette, row, rule, ruler, rulers, scale, set, single, size, straight, system, tape, tool, white, work, yellow,