The stability of the welding arc depends mainly on the voltage and the gas ionization when current zero-crossing as well as the electron emission ability of the electrode.
其电弧稳定与否，主要取决于电流过零瞬间的电弧空间电离度、 电极发射电子能力及再引燃电压的上升速度。
The secondary electron emission from the dielectric layer makes the discharge current increase.
绝缘介质层的二次电子发射，使放电电流增大。
The electron back bombardment phenomenon, which results in anomalous increase of gun current emission, has been observed in a series of our side coupled standing wave accelerating tubes.
在以半腔为首腔的边耦合驻波加速管中观察到了电子反轰现象，由于电子反轰的结果，导致电于枪发射电流非正常增长。
By measuring current voltage characteristics and observing light emission of these diodes, electron emission feature of these diamond powder cold cathodes were investigated.
通过该结构电流电压特性的测量和发光特性的观察研究了金刚石粉末冷阴极的电子场发射性能。
The electron emission film can restrict the field intensity to a low level when it causes an emission current to flow, and has a uniform electron emission characteristic.
该电子发射膜可以在其使发射电流流动时将场强限制为低水平，并且该电子发射膜具有均匀的电子发射特性。
The emission of repetition rate and intense current electron beam has different character with single pulse emission, and it has different request to the cathode.
与单脉冲工作的二极管相比，重复频率运行的强流电子束二极管具有不同的特点，对阴极也有不同的要求。
The emission of repetition rate and intense current electron beam has different character with single pulse emission, and it has different request to the cathode.
与单脉冲工作的二极管相比，重复频率运行的强流电子束二极管具有不同的特点，对阴极也有不同的要求。
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