...是汽车电子系统中各种开关、继电器和保险丝在开启或者关闭的过程中，由于电弧所产生的快速脉冲群（EFT） 脉冲极性Pulse polarity 外型尺寸mm ..
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从腔内看，此电场就如同一个加速电流脉冲，该脉冲可选中并携带电子，或在极性逆转时选中并携带质子。
Viewed from inside the tube, this field looks like an accelerating electrical pulse, and it is this pulse that picks up and carries the electrons-or, if the polarity is reversed, the protons.
如果伊娃能够截取鲍勃方发送的这两道脉冲，并改变其间距，就可以诱使爱丽丝方发送出与原计划略有不同的极性光子。
If Eve intercepts Bob's pulses and changes the separation between them, she can trick Alice into sending photons that have slightly different polarisations from those that were intended.
提出采用大功率IGBT设计变极性脉冲MIG焊双逆变弧焊电源。
The high-power IGBTs are adopted to design the dual inverter arc-welding power source for variable polarity pulse MIG welding.
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