The liquid volume of the volatile fluid is greater than that of the small cannister plus the conduit, but less than {HEAD ~ the volume} of {TAIL ~ the large cannister} 
of
The liquid volume of the volatile fluid is greater than that of the small cannister plus the conduit , but less than { HEAD ~ the volume } of { TAIL ~ the large cannister }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL