{HEAD ~ The outlet plane} of {TAIL ~ this tube} to the combustion chamber is formed with a breakaway edge which serves to stabilize and enlarge a backflow zone forming downstream 
of
{ HEAD ~ The outlet plane } of { TAIL ~ this tube } to the combustion chamber is formed with a breakaway edge which serves to stabilize and enlarge a backflow zone forming downstream
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH