The alignment error and positioning precision of the wiggler are analyzed.

对超导扭摆磁铁准直的误差和精度进行了分析.

The contact path offsets to the tip and toe of face gear tooth due to it is sensitive to the alignment error especially the error of axis shaft error in the misalignment.

啮合区域对安装误差较为敏感，特别是轴夹角误差的大小，对啮合印痕在齿面上分布的影响尤其明显，容易导致接触区域向面齿轮的大端和小端偏移。

A new automatic measuring system of alignment error portable laser collimator is introduced.

介绍了一种新颖的直线度误差自动测量系统———便携式激光准直仪.