{TAIL ~ The apparatus} has two dewatering stages {HEAD ~ a preliminary evaporating stage} and a residual evaporating stage, a conversion stage and a cooling stage 
{ TAIL ~ The apparatus } has two dewatering stages { HEAD ~ a preliminary evaporating stage } and a residual evaporating stage , a conversion stage and a cooling stage
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH