{TAIL ~ This variation} in size will usually produce {HEAD ~ the necessary density} and incompressibility when in use as to minimize the leakage from the cell 
{ TAIL ~ This variation } in size will usually produce { HEAD ~ the necessary density } and incompressibility when in use as to minimize the leakage from the cell
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH