Preferably, the temperature of the air supplied to the first zone is 40° to 80° C. below {HEAD ~ the air} supplied to the following zone or {TAIL ~ zones} 
supplied to
Preferably , the temperature of the air supplied to the first zone is 40 ° to 80 ° C. below { HEAD ~ the air } supplied to the following zone or { TAIL ~ zones }
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 HEAD REL REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL