As shown in FIG 2 b, the edge wrapped {TAIL ~ lines} 36 therefore have {HEAD ~ a rounded shape} like a semi circle 
As shown in FIG 2 b , the edge wrapped { TAIL ~ lines } 36 therefore have { HEAD ~ a rounded shape } like a semi circle
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH