each container electronics and the first box control electronics are housed within {HEAD ~ the first temperature side} of {TAIL ~ the first freezer} 
of
each container electronics and the first box control electronics are housed within { HEAD ~ the first temperature side } of { TAIL ~ the first freezer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL