词汇	背部凹陷
释义	背部凹陷 swayback
随便看	Stretchfibre stretch film stretch film package stretch flange stretch-flange formability test stretch flanging stretch-flanging die stretch flannel stretch flattener stretch flattening stretching correction stretching course stretching curve stretching deformation stretching device stretch for stretch-force curve stretch -force curve stretch form die stretch former stretch former;stretch forming machine stretch forming stretch forming bench stretch forming die stretch forming machine