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中文摘要：
在氩气／空气混合气体介质阻挡放电中，首次利用光谱方法，测量了圆圈点放电丝中圆圈放电和中心点放电的振动温度，并研究了它们随空气含量的变化。振动温度的计算利用的是氮分子第二正带系（C3Пu→B3Пg）的发射谱线。结果表明：圆圈放电的振动温度高于中心点放电的振动温度；二者均随空气含量的增加而增加，但圆圈放电振动温度的增加速率较大。该工作对介质阻挡放电中微放电研究具有重要意义。
英文摘要：
Vibrational temperature in circle discharge channel and central dot discharge channel of circle-dot filament in argon/air dielectric harrier discharge was firstly measured by using optical emission spectra. The variations of the vibrational temperature in central-dot discharge channel and circle discharge channel as a function of air content were also studied. Emission spectral lines of the N2 second positive band system （C3Пu→B3Пg） were used to calculate the vabrational temperature. It was found that the vibrational temperature of circle is higher than that of the central dot. The vibrational temperature of circle increases more rapidly than that of central dot although both increase with the increase in air content. These results are of great importance to the study of microdischarge in dielectric barrier discharge system.
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