Interbody fusion was assessed on standing lateral radiographs using the Newton et al 4-level grading scale.
在X线标准侧位片下用Newton等的4个水平的分级系统对椎间融合评估。
Using the Newton-Raphson iteration method, the node coordinates of elements on the reference configuration or the current configuration, can be obtained efficiently.
使用牛顿—瑞费逊迭代法,可快捷地得到初始构形或当前构形上的节点坐标。
In an attempt to solve this problem Newton made a detailed study of light, using a triangular glass prism for the purpose.
为了解决这个问题,牛顿对光进行仔细的研究,使用三角形玻璃棱镜,以达到这个目的。
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