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