{HEAD ~ These secondary particles} may be shaped by a series of {TAIL ~ methods} into various geometrical forms such as, for example, beads, extrudates, etc 
{ HEAD ~ These secondary particles } may be shaped by a series of { TAIL ~ methods } into various geometrical forms such as , for example , beads , extrudates , etc
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH