An apparatus 1, further comprising dry air supply means for supplying {HEAD ~ dry air} to {TAIL ~ the processing atmosphere} in said processing vessel 
to
An apparatus 1 , further comprising dry air supply means for supplying { HEAD ~ dry air } to { TAIL ~ the processing atmosphere } in said processing vessel
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 OTH OTH OTH OTH