当相移器存在的相移误差包括位移误差与倾斜误差时，同一幅干涉图诸像素点的相移并不同步，但其相移量在同一平面上。
If the reference mirror has tilt and piston errors caused by phase-shifting, the phase shifts of the pixels along the same interferogram are not a constant, but they are still kept on the same plane.
根据这两个条纹周期就可以得到物体的面内位移和倾斜的信息。
From that and using the deduced formula, the information of the displacement and titling of the object can be picked up.
地震动使海底倾斜土层软化、液化并产生永久变形和位移。
Soil softening and liquefaction due to earthquake cause permanent deformations and displacements of submerged slope.
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