The experimental results of analogue circuit show that type-S negative resistance can be obtained by using two like polarity transistors with various circuit connections.
模拟电路实验证明用两个同极性的晶体管以多种电路接法都能获得具有S型负阻特性的两端器件。
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.
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。
Like with design, with testing also, we find a huge polarity.
在测试和设计中，我们都能找到很强的对立性。
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