salter骨盆 截骨手术在空间上改变了髋臼的方向, 对股骨头的覆盖明显增加.Salter osteotomy changes the direction of acetabulum, and increases the coverage rate of the femoral head.主要观察指标: 坐骨神经与髋臼的位置关系.MAIN OUTCOME MEASURES: The location relation of the sc...
建立了摩擦因数与变形抗力的关系式.The equation of friction coefficient with deformation resistance was derived.介绍了用热模拟实验机测定冷轧变形抗力的测试过程和测试结果.This artical introduces the measuring process and the results by this technology.随热循环上限温度升高,其热疲劳抗...