Through motion analysis upon the indexing mechanism, the relationship between geometric parameters of mechanism and degree of index Angle was obtained.
通过对转位机构的运动分析，得出了机构的几何参数与转位角度大小之间的关系。
In natural materials, light waves entering at an Angle always bend to plunge more steeply into the material-the hallmark of a refractive index greater than 1.
在自然物质中，以一定角度进入的光波，进入物质后的角度更小——标志着折射率大于1。
Borehole curvature is one of significant index to evaluate Angle build-up capacity and wellbore quality, is very important to realize safety, speedily and efficiently drilling.
井眼曲率作为衡量工具造斜能力和评价井身质量的重要指标之一，对实现安全、快速、高效钻井具有重要意义。
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