预后取决于原因，位置，病程及肾脏损害和肾脏失偿程度。
Thee prognosis depends on the cause, site, duration, and degree of kidney damage and renal decompensation.
结论：牙在下颌骨上相对位置的变化会对其根尖主应力大小及方向产生一定的影响，而且其影响程度还会受到咬合对称性等因素的影响。
Conclusions: the variation of tooth position could affect the magnitude and direction of the main apical stress, in which the symmetry of the occlusion type was also involved.
堤坝工程质量隐患的类型、位置及严重程度都是极其复杂的。
The dike project quality hidden danger type, the position and the serious degree all are extremely complex.
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