Coal, either as coal fines or as coal briquettes, is introduced into a coking chamber and is thereat exposed to {TAIL ~ microwave radiation} to transform the coal into {HEAD ~ hot coke} 
Coal , either as coal fines or as coal briquettes , is introduced into a coking chamber and is thereat exposed to { TAIL ~ microwave radiation } to transform the coal into { HEAD ~ hot coke }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD