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The irreversible inelastic strains will occur as the stresses reach to critical yield surface, even result in the failure of the clay barrier.
如果土体应力超过其屈服应力,则土障将出现不可恢复的塑性应变,甚至导致破坏。
So the real question is how critical those other phases of sleep are. Do they yield any irreplaceable benefits?
所以真正重要的是其他睡眠阶段是否有不可替代的作用?
As an example, reducing the critical area in the design layout can enhance yield (Figure 1).
例如,减少设计布局的临界面积可以提高产量(见图1)。
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