Consequently, cooling the boat after PSG deposition tends to cause {HEAD ~ flaking} of {TAIL ~ PSG} from the boat 
of
Consequently , cooling the boat after PSG deposition tends to cause { HEAD ~ flaking } of { TAIL ~ PSG } from the boat
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH