The zones can be supplied with a single or preferably at least two separate air supplies which {HEAD ~ supply} drying {TAIL ~ air/fluidizing air} 
drying
The zones can be supplied with a single or preferably at least two separate air supplies which { HEAD ~ supply } drying { TAIL ~ air / fluidizing air }
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 TAIL TAIL TAIL