{HEAD ~ The papermaking fabrics} have significantly improved {TAIL ~ abrasion resistance characteristics} over fabrics comprising monofilaments of pure PET 
have significantly improved
{ HEAD ~ The papermaking fabrics } have significantly improved { TAIL ~ abrasion resistance characteristics } over fabrics comprising monofilaments of pure PET
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH