As long as curve C stays within the range of linearity, {HEAD ~ fine displacing element} 112 provides {TAIL ~ all adjustment} in the Y direction  
provides
As long as curve C stays within the range of linearity , { HEAD ~ fine displacing element } 112 provides { TAIL ~ all adjustment } in the Y direction
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH