Furthermore, {TAIL ~ particulate contamination} does not result solely from the acid cleaning process and {HEAD ~ post} processing steps 
Furthermore , { TAIL ~ particulate contamination } does not result solely from the acid cleaning process and { HEAD ~ post } processing steps
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH