If the height of the core partition is lower than {HEAD ~ the tip} of {TAIL ~ the nozzle} of the core burner, the core partition is not capable of exerting the effect to prevent the airflow 
of
If the height of the core partition is lower than { HEAD ~ the tip } of { TAIL ~ the nozzle } of the core burner , the core partition is not capable of exerting the effect to prevent the airflow
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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