The support part supports {TAIL ~ the heat emission part} and provides the heat emission source to {HEAD ~ the heat emission part} 
The support part supports { TAIL ~ the heat emission part } and provides the heat emission source to { HEAD ~ the heat emission part }
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD