As {TAIL ~ the leaf spring} is deflected, {HEAD ~ the body} of polymeric material is resiliently compressed 
As is resiliently compressed
As { TAIL ~ the leaf spring } is deflected , { HEAD ~ the body } of polymeric material is resiliently compressed
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL