Ключевые слова: accuracy, angle, azimuth, builder, building, cheap, closeup, construction, daylight, development, device, engineer, engineering, equipment, exact, geodesist, geodesy, geography, global, horizontal, industrial, industry, instrument, land, lens, level, looking, measurement, measuring, mensuration, no people, nobody, optical, outdoors, site, survey, surveying, surveyor, system, technology, theodolite, tool, tower ruler, tripod, working,