After that, {HEAD ~ a plurality} of heat emission parts 20 are coupled to {TAIL ~ the support part} 30 
are coupled to
After that , { HEAD ~ a plurality } of heat emission parts 20 are coupled to { TAIL ~ the support part } 30
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH