无电压时，油扩散，盖住边长200微米的像素。

When no voltage is applied, the oil spreads out to cover the pixel, which is 200 microns on a side.

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在直接转矩控制理论基础上，推导出一种基于定子磁链矢量增量来确定定子参考电压矢量的新型无速度传感器直接转矩控制方案。

This paper obtains a new speed-sensorless direct torque control scheme for induction motor based on calculating the stator flux vector increment to determine the stator reference voltage.

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而低电压或无电压代表死亡的疤痕组织。

Low or no voltage is associated with dead scar tissue.

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