Ключевые слова: amplify, analog, balance, black, blank, blur, bridge, clear, control, data, dial, direction, education, electric, energy, equipment, fashioned, field, fifty, gage, gauge, glass, handle, hydraulic, industry, iron, lab, level, lever, measurement, measuring, mechanical, meter, motivate, move, needle, noise, numbers, old, ping, plastic, point, pointer, pressure, rise, risk, scale, science, switch, technology,