a flow restrictor coupled to one of the plurality of gas outlet ports, wherein the flow restrictor is sized to provide flow conditions that are substantially equal to flow conditions of {HEAD ~ the first and second gas inlets} of {TAIL ~ the processing chamber} 
of
a flow restrictor coupled to one of the plurality of gas outlet ports , wherein the flow restrictor is sized to provide flow conditions that are substantially equal to flow conditions of { HEAD ~ the first and second gas inlets } of { TAIL ~ the processing chamber }
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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL