{HEAD ~ Abutting edges} of the individual material layers extend in {TAIL ~ the direction} of the resonator body axis and the abutting edges of the individual material layers are offset relative to each other in circumferential direction of the hollow cylinder 
extend in
{ HEAD ~ Abutting edges } of the individual material layers extend in { TAIL ~ the direction } of the resonator body axis and the abutting edges of the individual material layers are offset relative to each other in circumferential direction of the hollow cylinder
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL 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 OTH OTH OTH