It has shown that adopting revolving air flow and adjusting the flame length by changing the strength of revolving for low pressure oil burners is feasible.
结果表明：采用旋转气流及用改变旋流强度的方法来调节低压油烧嘴的火焰长度是切实可行的。
2
The capacitance automatic height adjusting control system of lar-ge flame cutting machine is presented in the paper.