The corresponding apparatus is intended to have a simplest possible construction which fulfils {HEAD ~ the limited constructional possibilities} available, and {TAIL ~ the heating requirements} of the fluidized bed are minimized as far as possible 
The corresponding apparatus is intended to have a simplest possible construction which fulfils { HEAD ~ the limited constructional possibilities } available , and { TAIL ~ the heating requirements } of the fluidized bed are minimized as far as possible
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH