{TAIL ~ The process fluid} after the reaction is discharged through {HEAD ~ an outlet nozzle} 7 at the bottom 
{ TAIL ~ The process fluid } after the reaction is discharged through { HEAD ~ an outlet nozzle } 7 at the bottom
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH