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