discharging {HEAD ~ a fluid} from the fluid assembly into 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 {TAIL ~ the second position} 
discharging { HEAD ~ a fluid } from the fluid assembly into 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 { TAIL ~ the second position }
OTH HEAD HEAD HEAD HEAD HEAD HEAD 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 OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL