Additionally, {TAIL ~ the low thermal expansion sealing ring} reduces {HEAD ~ the clearance} C,C demanded between the interface between the sealing surface and the tip of the plurality of turbine blades 
Additionally , { TAIL ~ the low thermal expansion sealing ring } reduces { HEAD ~ the clearance } C , C demanded between the interface between the sealing surface and the tip of the plurality of turbine blades
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH