Ключевые слова: accuracy, background, blueprint, caliper, centimeter, circle, close up, compass, construction, curve, drawing, education, engineer, engineering, equipment, gauge, generated, gray, horizontal, image, inch, innovation, instrument, isolated, measurement, measuring, metal, metallic, meter, nobody, object, office, pencil, projection, repairing, ruler, school, screw, sextant, slide, steel, stuff, tool, trammel, vintage, white, work,