Yet another known method uses {TAIL ~ a thermal gradient} to ensure selective adherence of the lens in {HEAD ~ the mold} 
Yet another known method uses { TAIL ~ a thermal gradient } to ensure selective adherence of the lens in { HEAD ~ the mold }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD