{HEAD ~ The gas} to slurry {TAIL ~ volume ratio} should also be controlled to assure that the flow regime does not shift from homogeneous flow to non homogeneous flow 
to slurry
{ HEAD ~ The gas } to slurry { TAIL ~ volume ratio } should also be controlled to assure that the flow regime does not shift from homogeneous flow to non homogeneous flow
HEAD HEAD HEAD HEAD HEAD HEAD REL 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