{HEAD ~ The working medium} for {TAIL ~ heat cycle} 1, wherein 1,1 dichloro 2,3,3,3 tetrafluoropropene is contained in a content of at least 60 mass % in the working medium for heat cycle 
for
{ HEAD ~ The working medium } for { TAIL ~ heat cycle } 1 , wherein 1,1 dichloro 2,3,3,3 tetrafluoropropene is contained in a content of at least 60 mass % in the working medium for heat cycle
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH