Ключевые слова: alignment, angle, cartography, construction, digital, disc marked, distance, distance measurement, effort, engineering, equipment, exact, finder, geodesist, geodesy, geodetic, geodetic signal, geodetic survey marks, grad, hand, instrument, land, lens, level, manual, map, measure, measurement, measuring, pin cushion, polar, positioning, precise, precise angle, rod, sight, signal, station, stick, survey marker, surveying, surveyor, system, target, technology, topography, total, tripod, vertical, view, wood stake, worker, working,