As she changes her form and modifies her polarity, many present day features will disappear or change.

当她改变她的形态并转变她的极性，现今很多的特征会消失或改变。

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This change in polarity causes the magnetic field in front of the train to pull the vehicle forward, while the magnetic field behind the train adds more forward thrust.

这种极性的变化导致列车前方牵引列车前进的电磁场，同时列车后面的电磁场加上了更多的向前推力。

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The polarity of impulse voltage and the polarity of insulator surface electric charge can affect the corona initial time of insulator, the change time - interval and the corona current.

外拖冲击电压的极性与绝缘子表面电荷极性是否相同会影响绝缘子的电晕起始时刻、由流注向先导的转变时间间隔和流注电晕电流。

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To change from a one to a zero, the microprocessor sends electrical currents to change the polarity of the top layer.

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Reality extends to the plain fact that there is no switch or level to push, pull or toggle that will instantaneously change the polarity of the flow.

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To change the bit from a one to a zero to write or store new data the microprocessor sends electrical currents through the chip to change the polarity of the top layer.

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