Conclusion: has a bright future in On-arm extrnal fixation support the treatment of limb fracture by B-type ultrasonic leading. 结论:单臂外固定支架在超声引导定位下对治疗肢体骨骨折,具有广泛的应用前景。
"Bright band" defect on fracture surface in Cr-Ni structural steels 铬镍结构钢断口表面亮带缺陷本质的研究
And the percentage of the collapse surface, bright surface and fracture surface in different shape area was observed. The results offered basis for further analysis on process parameters 'effect. 并分析了不同形状区域内塌角面、光亮面、断裂面所占的百分比,所得的结果有利于进一步分析工艺参数的影响规律。