By using Lorentz transformation, this article explains the paradox of Lorentz length contraction, it also proves that observers in different reference systems reach the same observing conclusion.
本文应用洛仑兹变换和信号的传播速度小于光速，解释了洛仑兹长度收缩佯谬，具体证明了在不同参照系上的观测者，观测所得结论相同。
The article points out main characteristics and the contraction analysis of the period of economic transformation and solutions to the contraction.
经济转型时期的主要特征，转型时期的紧缩分析。
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