在实验过程中还发现弧源不同的接地方式对基片台悬浮电位有很大的影响。
It was found that the substrate floating potential changes a lot when the grounded state of arc source changed.
极化电位至0V时，阻抗谱上出现三个时间常数，对应两个容抗弧和一个感抗弧。
When the potential reached 0v, there are three time constants, one inductance arc and two contain arcs.
在无补偿直流牵引电动机中，通常采用主极极弧为圆弧的扩张气隙来改善换向器电位特性。
The opening air-gaps with circular main pole arc are usually used to improve the potential curve of commutator on non-compensable d. c. traction motors.
在无补偿直流牵引电动机中，通常采用主极极弧为圆弧的扩张气隙来改善换向器电位特性。
The opening air-gaps with circular main pole arc are usually used to improve the potential curve of commutator on non-compensable d. c. traction motors.
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