实验发现，随着阴极温度的增加，电弧的后退速度下降。

It was found that with increasing the cathode temperature the arc velocity decreases.

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模拟和测量结果显示磁场对MIG的束流有影响，MIG的束流也与阴极温度和空间电荷效应有关系。

Simulation and measurement result indicate that magnetic field influence the beam current of MIG, and the beam current of the MIG depends on the cathode temperature and space charge effect.

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通过调整阴极温度和采用“联合排气工艺”，黑白显象管的平均寿命提高了四倍以上。因此，早期失效的问题基本得到解决。

By regulating the cathode temperature and applying the combined exhaust techniques, the mean time of no-failure operation of this picture tube is lengthened more than four times.

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