During the manufacturing process of hard disk, servo track writing is one of the most important steps.
在硬盘生产过程中，一个不可或缺的环节就是伺服信息刻写。
In the whole process of production for a hard disk drive, the servo track writing is a very important process.
在硬盘生产过程中，一个很重要的环节就是伺服刻写。
A new servo track writing method (named spiral servo track writing) for hard disks is introduced in this paper.
在理论上，建立了螺旋伺服刻写的运动模型，并作了性能分析。
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