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