In the lower part of the interior of the withdrawal section 1 can again be seen {HEAD ~ the glass melt} 18 which is at {TAIL ~ such a level} that it is not quite able to reach the level of the molten sulfate withdrawal opening 
In the lower part of the interior of the withdrawal section 1 can again be seen { HEAD ~ the glass melt } 18 which is at { TAIL ~ such a level } that it is not quite able to reach the level of the molten sulfate withdrawal opening
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH