Ключевые слова: analog, analyzing, broadcasting, button, calibrate, circuit, color, digital, digitally, display, electricity, electronic, electronics, engineering, equipment, experiment, frequency, generated, hand, image, industry, instrument, laboratory, liquidcrystal, measurement, measuring, modern, monitor, oscilloscope, pattern, power, probe arm, radio, repairing, scanner, scientific, screen, signal, sine, sinus, surveillance, technician, technology, test, tool, wave, waveform, work,