示波器测量方波一般需要3 5倍于信号�率的带宽，那在测量正弦波的时候要多�倍于原来信号�率的带宽�？ 知乎 Sketch Coloring Page

示波器测量方波一般需要3 5倍于信号�率的带宽，那在测量正弦波的时候要多�倍于原来信号�率的带宽�？ 知乎 Template

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