The compliant plate members define {HEAD ~ a sealing ring} between the stationary housing and {TAIL ~ a rotor} 
The compliant plate members define { HEAD ~ a sealing ring } between the stationary housing and { TAIL ~ a rotor }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL