The gas combusted within {TAIL ~ the combustion chamber} through {HEAD ~ the above mentioned process} is then rapidly removed from the combustion chamber 
The gas combusted within { TAIL ~ the combustion chamber } through { HEAD ~ the above mentioned process } is then rapidly removed from the combustion chamber
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH