The initial concentrations of {HEAD ~ these constituents} in {TAIL ~ the broth} and the order of mixing these chemicals are important 
in
The initial concentrations of { HEAD ~ these constituents } in { TAIL ~ the broth } and the order of mixing these chemicals are important
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH