振荡频率由电容储存电荷的能力，以及线圈生成磁场的能力所共同决定。

The frequency of this oscillation is controlled by the capacitor's ability to store charge and the coil's ability to produce a magnetic field.

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空间电荷形成的虚阴极的位置和电势周期性地振荡。

The position and potential of the virtual cathode caused by space charge effects oscillate periodically.

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在漂移区中考虑直流空间电荷场的影响。我们发现电子运动在该区服从一振荡方程；

We find out that, in drift, region, the motion equation of electron is an oscillation one, which influences the prcbunching of electrons.

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