{HEAD ~ said pads} have {TAIL ~ their peripheral edge areas} inclined upwardly and outwardly, whereby the liquid impervious bonding agent between the pads acts as a dam to prevent condensate in the first pad from overflowing into the second pad 
have
{ HEAD ~ said pads } have { TAIL ~ their peripheral edge areas } inclined upwardly and outwardly , whereby the liquid impervious bonding agent between the pads acts as a dam to prevent condensate in the first pad from overflowing into the second pad
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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