As previously indicated, the lance may be {HEAD ~ part} of {TAIL ~ the burner} and, therefore, the lance may be combined with an axisymmetric or nonaxisymmetric fuel outlet which emits a fuel alone or a fuel in combination with an oxidant, e.g. oxygen or air within the scope of the invention 
As previously indicated , the lance may be { HEAD ~ part } of { TAIL ~ the burner } and , therefore , the lance may be combined with an axisymmetric or nonaxisymmetric fuel outlet which emits a fuel alone or a fuel in combination with an oxidant , e.g. oxygen or air within the scope of the invention
OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH