心脏传导系电动模型 KAH-xzcd 图片

p1Src=//y3.yzimgs.com/uploads/314009/2017726-95721646.png?watermark/2/text/5LiK5rW35Lqo6ZqG56eR5pWZ6K6-5aSH5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/300/fill/I0E3QTlBOA==/gravity/SouthEast"