The critical minimum gas flow rate for any given coal oil slurry will depend on numerous factors such as coal concentration, coal particle size distribution, composition of the solvent , and {HEAD ~ type} of {TAIL ~ coal} 
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The critical minimum gas flow rate for any given coal oil slurry will depend on numerous factors such as coal concentration , coal particle size distribution , composition of the solvent , and { HEAD ~ type } of { TAIL ~ coal }
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 OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL