Ключевые слова: accuracy, background, business, centimeter, clipping, closeup, design, drawing, education, engineering, equipment, geometry, horizontal, inches, industrial, instrument, isolated, length, line, long, macro, magnification, mathematical, mathematics, measure, measurement, metric, millimeter, number, object, office, path, plastic, precise, protractor, row, rule, ruler, school, straight, student, supply, symbol, technology, textured, tool, white, wood, work, yellow,