ASKER RT-90EPH-50反弹试验机反发弹测试仪器图片

p1Src=//y2.yzimgs.com/uploads/890/20180616-1529135782.jpg?watermark/2/text/5bm_5bee5biC5pm25Y2a55S15a2Q5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/400/fill/I0E3QTlBOA==/gravity/SouthEast"

aa