{TAIL ~ The thermoplastic layer} is pressed against {HEAD ~ this surface} while it is heated by heat radiation, in particular laser light 
{ TAIL ~ The thermoplastic layer } is pressed against { HEAD ~ this surface } while it is heated by heat radiation , in particular laser light
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH