{HEAD ~ The assemblies} may be held in {TAIL ~ that temperature range} from about 1 to about 5 hours or until they are sufficiently dense, e.g., having a specific gravity more than about 98% of the theoretical value 
held in
{ HEAD ~ The assemblies } may be held in { TAIL ~ that temperature range } from about 1 to about 5 hours or until they are sufficiently dense , e.g. , having a specific gravity more than about 98 % of the theoretical value
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH