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