放电管：装有低压气体的封闭绝缘容器，当电极有足够的电压时，通过它电流就开始流动。
Discharge tube: a closed insulating vessel containing a gas at low pressure through which an electric current flows when sufficient voltage is applied to its electrodes.
随着大容量发电机的普遍应用，发电机出线的大电流封闭母线也被广泛采用。
Along with the universal application of large generator, the enclosed bus with big current for generator outgoing line is adopted extensively.
分析了强迫风冷大电流封闭母线中气体带电粒子产生的原因和其中的气体流动状况；
The reasons of producing electric particle of gas and the condition of air flowing in large current enclosed busbar with forced air cooling are analysed.
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