受迫振动阻尼复摆实验仪 QY-SPZ-IV 图片

p1Src=//y3.yzimgs.com/uploads/515737/2016118-16159782.jpg?watermark/2/text/5Y2X5Lqs5paX55-z5L-h5oGv56eR5oqA5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/750/fill/I0E3QTlBOA==/gravity/SouthEast"