The method 23 wherein {TAIL ~ both the cooling water} and the oxidant are injected through the side port into the reaction chamber in a direction from {HEAD ~ the back portion} to the front portion 
The method 23 wherein { TAIL ~ both the cooling water } and the oxidant are injected through the side port into the reaction chamber in a direction from { HEAD ~ the back portion } to the front portion
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH 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 OTH OTH