小功率负载电阻箱小功率负载电阻箱图片

p1Src=//y3.yzimgs.com/uploads_old/468886/2015102909193657_old.jpg&p2Src=//y3.yzimgs.com/uploads_old/468886/2015102909193691_old.jpg&p3Src=//y3.yzimgs.com/uploads_old/468886/2015102909193707_old.jpg"