The details of the structure inside the cathode spot holes were observed and some new important results were obtained.
观察到了阴极斑点孔洞内部结构细节，获得了新的结果。
In breakers for operation in low-voltage ac circuits, advantage is taken of the voltage required to establish a cathode spot.
用于低压交流回路的断 路器，由于在过零换向电压不能满足再次阴极放电起弧的需要，因此具有容易灭 弧的优点。
In the paper, the cathode spot movements and chopping current of pure graphite and copper-impregnated metallized graphite (Cu-C) in vacuum were investigated.
研究了纯石墨和铜-石墨材料的阴极斑点的特性及真空电弧截流现象。
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