Ключевые слова: barograph, barometer, blue, change, changing, chart, climate, closeup, data, document, drawing, erratic, falling, graph, green, horizontal orientation, instrument, measure, measuring, meteorology, millibar, moving down, needle, numbers, paper, physics, pressure, record, recording, scale, science, selective focus, signal, single line, striped, trace, trend, weak, white, writing,