This is {HEAD ~ part} of {TAIL ~ the pre deposition treatment}, represented in FIG 2 at 22 
of
This is { HEAD ~ part } of { TAIL ~ the pre deposition treatment } , represented in FIG 2 at 22
OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH