正极性导线电晕声音和无线电干扰变化都不大；负极性导线电晕声音和无线电干扰都增大。
The corona voice strengths and levels of radio interference produced by positive polarity wire have little changes, and those produced by negative polarity wire increase with temperature.
正极性导线电晕声音和无线电干扰变化都不大；负极性导线电晕声音和无线电干扰都增大。
The corona voice strengths and levels of radio interference produced by positive polarity wire have little changes, and those produced by negative polarity wire increase with temperature.
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