The casing offcenter is a key factor to effect the displacing efficiency.
套管偏心是影响顶替效率的关键因素。
This paper analyzes the offcenter error of installing reference ball as testing lathe main spindle rotation errors in Ningxia Institute of Technology and puts forward the way of eliminating errors.
本文对宁夏工学院测试车床主轴回转误差运动时基准球安装偏心引起的误差进行了分析，并提出了剔除该误差的方法。
This paper analyzes the offcenter error of installing reference ball as testing lathe main spindle rotation errors in Ningxia Institute of Technology and puts forward the way of eliminating errors.
本文对宁夏工学院测试车床主轴回转误差运动时基准球安装偏心引起的误差进行了分析，并提出了剔除该误差的方法。
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