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$ \begin{cases} x=c_{11}x^{\prime}+c_{12}y^{\prime}+c_{13}z^{\prime}+x_{0}, \\ y=c_{21}x^{\prime}+c_{22}y^{\prime}+c_{23}z^{\prime}+y_{0}, \\ z=c_{13}x^{\prime}+c_{23}y^{\prime}+c_{33}z^{\prime}+z_{0}. \end{cases} $
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