Basin subsidence, uplift, fracture are geologic trace formed by stress state with different characters.
盆地沉陷、隆起、断裂构造等都是不同特点的应力状态作用下的地质痕迹。
Objective: the aim of study was to discusses the effect of trace element (zinc) on promoting the fracture healing through influencing serum alkaline phosphatase levels (ALP).
目的：通过微量元素锌对血清碱性磷酸酶(ALP)的影响，探讨其促进骨痂形成及骨折愈合的作用。
It is showed that:(1)the major surface damage patterns due to grinding are microplastic deformation trace, fracture chipping pit, microcracks, and subsidence in the loosen region of material;
结果表明：磨削损伤的主要形式有显微塑性变形磨痕、断裂剥落坑、磨削微裂纹和材料疏松区的塌坑；
应用推荐