First of all, note that the graph is symmetric with respect to midline of the frequency axis.

首先，图像以频率坐标轴的中线为轴对称。

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Time labels the vertical axis of the above plot, and frequency marks the horizontal axis.

上图中，垂直轴表示时间，水平轴表示频率。

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If the rover were not moving, the frequency distortions of its signals to Earth would reveal the rate of wobbling in Mars's axis.

如果探测器与火星保持静止，那么它向地球发出的信号将会产生频率畸变。由此，我们可以推算出火星轴线的扰动率。

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The vertical axis is conversion rate and the horizontal axis is frequency.

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