{HEAD ~ The turbine section} 16 is {TAIL ~ a stage} of disk mounted turbine blades 20, only one of which is shown, each of which blades 20 has a hollow aerofoil 22 
is
{ HEAD ~ The turbine section } 16 is { TAIL ~ a stage } of disk mounted turbine blades 20 , only one of which is shown , each of which blades 20 has a hollow aerofoil 22
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL 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