必须将心轴锚定在中心点和驱动板之间的位置，并且必须使用车床轧头。

The mandrel must be mounted between centers and a drive plate and lathe dog must be used.

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必须将心轴锚定在中心点和驱动板之间的位置，并且必须使用车床轧头。

The mandrel must be mounted between centers and a drive plate and lathe dog must be used.

youdao