采用单绕组变极方法实现速度变换。
Uses the simplex winding polarity reversal method to realize the speed transformation.
采用无段速度变换装置，适合不同纸张给纸。
Adopts the above speed change device to fit different paper paper.
将通常的洛仑兹坐标变换公式和速度变换公式推广到了一个更一般的情况。
In this paper, we generalized the Lorentz space-time transformation formula and the Lorentz velocity transformation formula to a more general case.
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