In this case, {TAIL ~ each} of {HEAD ~ the surfaces} 26 of the rotor 20 is provided with pockets 28 integrally cast in the surfaces 26 
In this case , { TAIL ~ each } of { HEAD ~ the surfaces } 26 of the rotor 20 is provided with pockets 28 integrally cast in the surfaces 26
OTH OTH OTH OTH 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