Ring {HEAD ~ laser angular rate sensors} of {TAIL ~ the type} referred to commonly utilize a block of material that is dimensionally stable, both thermally and mechanically 
of
Ring { HEAD ~ laser angular rate sensors } of { TAIL ~ the type } referred to commonly utilize a block of material that is dimensionally stable , both thermally and mechanically
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH