为了验证这个想法，她和同事们设计了一种设备，利用短脉冲电使周围空气离子化，产生紫色富含氧离子的等离子火焰。
To test this idea, she and her colleagues designed a device that USES short pulses of electricity to ionise the surrounding air, creating a purple plume of plasma rich in oxygen ions.
但是由于完全预混式燃烧器火焰短且温度高，增加了火焰向燃烧器的传热，造成燃烧器头部过热，使材料老化加快。
But the short flame and high temperature of fully aerated burners conduct more heat through burners and that causes the head of burners overheat and material the size and structure of burners.
由于采用了上述技术方案，本发明具有使空气和煤气混合效率高，燃烧时火焰长度短、火焰截面积大的优点。
The invention adopting the technical scheme has the advantages of high mixing efficiency between air and gas, short flame length during the combustion and large section surface of flame.
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