Ключевые слова: background, caliper, calliper, care, centimeter, closeup, concept, construction, design, engineering, equipment, gray, health, healthy, illustration, image, implement, industrial, instrument, isolated, length, long, measure, measurement, metal, meter, metric, micrometer, millimeter, number, object, progress, rule, ruler, scale, screw, service, slide, slidegauge, steel, symbol, tape, technology, tool, vernier, white, work, yellow,