By concentrating or focusing the radiant energy along a narrow area transverse to the direction of {HEAD ~ motion}, the build up of heat in the core stock may be controlled satisfactorily to avoid deformation, yet {TAIL ~ enough energy} is transferred to tack or fuse the laminate to the core stock surface at the points of contact 
By concentrating or focusing the radiant energy along a narrow area transverse to the direction of { HEAD ~ motion } , the build up of heat in the core stock may be controlled satisfactorily to avoid deformation , yet { TAIL ~ enough energy } is transferred to tack or fuse the laminate to the core stock surface at the points of contact
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