Previous experiments have shown that applying a constant electric field created small effects on flames, but Cademartiri's work used an oscillating electric field to greater effect.
过去的实验已证实，施加恒定电场于火焰上会产生较小的效应，而Cademartiri在工作中采用振荡电场得到了更显著的效应。
To create plasma, they applied an oscillating (radio frequency) electric field to the gas using two disk-shaped electrodes located near the top and bottom of the chamber.
为了制造等离子体，他们还在容器上下两个表面安上了电极，加上了射频震荡电场。
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