discharging {HEAD ~ a fluid} from the fluid assembly into {TAIL ~ the cavity} and in contact with the body in order to fill the cavity to a second position achieving the known volume wherein the inner layer is positioned away from the body in the second position 
discharging { HEAD ~ a fluid } from the fluid assembly into { TAIL ~ the cavity } and in contact with the body in order to fill the cavity to a second position achieving the known volume wherein the inner layer is positioned away from the body in the second position
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL 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 OTH OTH OTH OTH OTH