永久变形，已经发生了，大概是，6厘米左右。
Permanent deformation has already occurred, and so we're now something like six centimeters.
地铁振动下黄土永久变形力学模型的研究。
Under the subway vibration mechanical model of the permanent deformation of loess research.
我让它永久变形。
永久变形是触点压力随着时间变化而降低的一种方式。
Permanent set is one method by which the contact force decreases over time.
永久变形是触点压力随着时间变化而降低的一种方式。
Permanent set is one method by which the contact force decreases over time.
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