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Ключевые слова:
accuracy, alert, beat, board, center, centre, chart, circle, circular, concentric, design, detection, direction, earthquake, echo, element, epicenter, equipment, icon, illustration, impulse, information, isolated, location, logo, magnitude, map, mark, modern, object, pin, point, pointer, pulsation, pulse, radar, radius, red, round, seismic, sign, signal, sound, symbol, target, technology, trendy, wave, white,