Curve C represents the amount of expansion or contraction of {TAIL ~ fine displacing element} 112 from {HEAD ~ its central position} 
Curve C represents the amount of expansion or contraction of { TAIL ~ fine displacing element } 112 from { HEAD ~ its central position }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD