Ключевые слова: abstract, accuracy, accurate, background, caliper, caliperrule, centimeter, close, closeup, engineer, engineering, equipment, gauge, inch, industrial, industry, instrument, machine, measure, measurement, measuring, metal, metallic, metalworking, meter, micrometer, millimeter, nobody, object, one, plate, polished, precise, precision, rule, ruler, scale, silver, single, slide, stainless, steel, technology, tool, vernier, work,