{TAIL ~ The springs} 20 provide compliancy and overcome difficulties associated with varying coefficients of {HEAD ~ thermal expansion}  
{ TAIL ~ The springs } 20 provide compliancy and overcome difficulties associated with varying coefficients of { HEAD ~ thermal expansion }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH