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