In the high impedance state, output voltage is unaltered.
在高阻抗状态，输出电压不改变。
High voltage blasting lets the used sand to be under boiling state, therefore best cooling effect can be reached.
高压鼓风使旧砂处于沸腾状态，达到最佳冷却效果。
By using this kind of shielding effects, the electric current density distribution can be improved, the back-corona can be reduced and the high voltage and low current state can be obtained.
利用电晕线支撑部分和屏蔽管的静电屏蔽效应，可以改善电除尘器板电流密度分布，减弱反电晕，并可得到高电压低电流的安全运行状态。
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