In a magnetic diskunit, an arm on which magnetic heads are mounted.
磁盘机中一种用于安装磁头的臂状部件。
2
A magnetic diskunit in which some disks are fixed and others may be exchanged by an operator.
一种磁盘存储设备，其中一些磁盘是固定的，另一些则可以由操作员更换其中的盘片。
3
To study the adsorptive mechanism and sliding frictional mechanism between the head and disk of the magnetic diskunit, a qualitative analysis theory is given in this paper.