corona discharge
柯林斯词典
1. N an electrical discharge appearing on and around the surface of a charged conductor, caused by ionization of the surrounding gas 電暈放電 (Also called corona)→see also Saint Elmo's fire
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1. N an electrical discharge appearing on and around the surface of a charged conductor, caused by ionization of the surrounding gas 電暈放電 (Also called corona)→see also Saint Elmo's fire