hollow shaft meaning in English

空心轴
中空轴

Driving power for the cutting tool comes from the rotation of the spindle, which is a hollow shaft that rotates in bearings .
刀具的驱动力来自主轴的旋转，主轴则是一根在轴承中旋转的空心轴。
The measures of improving hollow shaft ' s precision
提高空心细长轴磨削精度的措施
Absolute multi - turn encoder and hollow shaft
绝对式多转编码器
Hollow shaft gear boxes for cranes
起重机用套装式减速器
Hollow shaft hollow shaft with shrink disk
普通轴伸式

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