On the basis of the model, we found ways to release the primary shaft vibration's influence on the quality of the polish surface.

在理论分析的基础上，提出减轻由主轴的振动引起的抛光表面质量问题的方法。

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Besides, at the non-drive-end of the primary shaft, some mechanical fitting in the bearing case were detected loosen, through spectrum-zoom analysis and waveform comparison in the time-domain.

另外，由转频附近细化谱分析及时域波形比较，发现输入轴非电机端轴承座内机件还有径向配合松动故障。

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Think of it as a rotating transformer, with the primary windings residing in a stationary casing (stator) and the secondary conductors attached to an inner shaft (rotor).

你可以把这种电动机当作一个旋转变压器，其主要的线圈在固定套管(定子)内，二级导线附在一个内轴(转子)上。

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The shaft is a mile deep and the primary access to the Lucky Friday Mine.

FORBES: Hecla Officials Anticipate Clean-Up Of Mine Shaft Can Begin In Few Weeks