圆柱螺旋弹簧的无损检测
侯胜利,丁学龙
Nondestructive testing for cylinder helix spring
HOU Sheng-li,DING Xue-long
中国钢铁期刊网 . 2016, (3): 20 -23 .  DOI: 10.13228/j.boyuan.issn1001-0777.20150063