The container 1 further comprising means on the vessel wall to facilitate determination of the amount of {HEAD ~ liquid} within {TAIL ~ the vessel} 
within
The container 1 further comprising means on the vessel wall to facilitate determination of the amount of { HEAD ~ liquid } within { TAIL ~ the vessel }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL