The theory of field-induced oxidation and the impact of bias voltage and pulse time on the nanofabrication were studied by AFM.

用原子力显微镜（AFM）研究了电场诱导氧化理论以及偏置电压和脉冲时间对加工结构尺寸的影响。

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It is concluded that the height and the radius of nanostructures increase with the raising of the applied voltage and the pulse time.

随着外加脉冲偏压的增大、脉冲时间的增加，加工得到的点状纳米结构的高度和半径会随之增加。

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CONCLUSION: Maximum of transformation efficiency is achieved by proportionating combination of electric field intensities and pulse time.

结论： 适当的场强和脉冲时间的组合可使转化效率达到最大值。

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