The combustion gases generated during the combustion are collected and purified in a separating member by {TAIL ~ separation} of {HEAD ~ solid material} from the combustion gases 
The combustion gases generated during the combustion are collected and purified in a separating member by { TAIL ~ separation } of { HEAD ~ solid material } from the combustion gases
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH