{HEAD ~ This arrangement} cools {TAIL ~ the forward end} of the hula seal by impingement cooling and cools the aft end of the liner by convection cooling while also purging the space 208 beneath the hula seal 
cools
{ HEAD ~ This arrangement } cools { TAIL ~ the forward end } of the hula seal by impingement cooling and cools the aft end of the liner by convection cooling while also purging the space 208 beneath the hula seal
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