了解示波器，示波器早已成为检测电子线路最有效的工具之一,通过观察线路关键节点的电压电流波形可以直观地检查线路工作是否正常,验证设计是否恰当。-Learn Oscilloscopes, Oscilloscope Detect electronic circuits has become the most effective instrument of one of the key by observing the line voltage and current waveform of the n