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汉语拼音：cí tóu

磁性记录中的一种电磁换能器。它能将电信号变换成磁信号，并使之存储在磁带、磁盘或磁鼓上；反之也能将存储的磁信号还原成电信号或将它消去。可分为记录磁头、重放磁头、消除磁头等多种。

• The arm that holds the read-write head and moves back and forth over the surface of a dis k.

  支持读写磁头在硬盘表面前后移动的机械臂。

• The collection of tracks on the various platters that can be read without moving the head is called a cylinder.

  各盘片上在无需移动磁头的前提下即可读取的磁道的集合称为柱面。

• Since the heater is OFF during load, the risk of collision between the head element section and the magnetic disk is reduced.

  由于在装载过程中加热器被关闭，因此磁头元件部分和磁盘之间碰撞的风险被减小。

• A head crash happens when the surface of the read-write head or particles on its surface contact the magnetic disk surface.

  当读写头的表面或表面上的微粒与磁盘表面接触时会发生磁头划伤。

• Do not replace a drive for suspected head profiling, unless all other causes of cleaning lights have been eliminated.

  不要由于怀疑磁头形状问题而更换驱动器，除非已经消除了其他的清除痕迹原因。

• The cleaning tape is abrasive enough to remove a thin layer of material off the head.

  清洁磁带足够消除磁头上的薄层物质。

• Repositioning the head in this "random" manner added to the total time required to complete a transaction.

  用这种“随机”方式重定位磁头增加了完成事务所需的总时间。

• For the technology to work like a disk, though, the same bits of data will have to pass repeatedly under the reading and writing heads.

  然而，要使这一技术像硬盘那样运作，同样位数的数据要不断地穿过读写磁头。

• As mentioned under contamination, Under normal use, the head can accumulate debris in the form of chemical staining.

  正如上面污染部分所述，在正常使用情况下，磁头可能会聚集一些碎片，从而导致化学生锈。