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