Objective to study the relationship between the microtopography of the gunshot damaged hair and the shooting distance.
目的探讨毛发枪弹损伤微观形态与射击距离之间的关系。
2
Objective: to study the influence of attachment, proliferation, differentiation of osteoblasts on different titanium surface microtopography in vitro.
目的：研究不同钛种植体表面微形态对成骨细胞生长的影响。
3
Some technical difficulties existed in the measurements are analyzed and solved. The high accuracy real time measurements of nanometer surface microtopography are carried.