In accordance with a second embodiment of the present invention there is provided an apparatus for controlling {HEAD ~ grain flow} within {TAIL ~ a grain dryer} 
In accordance with a second embodiment of the present invention there is provided an apparatus for controlling { HEAD ~ grain flow } within { TAIL ~ a grain dryer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL