The bushing projections may be studs or may comprise {HEAD ~ at least one array} of {TAIL ~ circumferential loops} 
of
The bushing projections may be studs or may comprise { HEAD ~ at least one array } of { TAIL ~ circumferential loops }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL