In general it can be said that {HEAD ~ the cooling system} of {TAIL ~ the device} contains matter in at least two different states of phase 
of
In general it can be said that { HEAD ~ the cooling system } of { TAIL ~ the device } contains matter in at least two different states of phase
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH