Since the joint between the housing and the container has been sealed, {HEAD ~ the further increase} in {TAIL ~ fluid pressure} is applied to only the upper side of the container 
in
Since the joint between the housing and the container has been sealed , { HEAD ~ the further increase } in { TAIL ~ fluid pressure } is applied to only the upper side of the container
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH