An example of a polynomial and empirical data relating to the relationship between the density and {HEAD ~ the pressure drop} through {TAIL ~ the insulation} is shown in FIG 12 
An example of a polynomial and empirical data relating to the relationship between the density and { HEAD ~ the pressure drop } through { TAIL ~ the insulation } is shown in FIG 12
OTH OTH OTH 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