One of the effective ways to improve the area recording density of magnetic media has been to reduce the size of recording unit.

信息存储用磁性介质的记录面密度的不断提高，主要途径之一就是减小磁性颗粒的尺寸。

youdao

The studies on the developing of new hybrid recording media are very important to the increasing of the area density of HDD and to the implementation of hybrid recoding method.

开展光磁混合记录介质的研究，对于提高硬盘的记录密度和实现光磁混合记录技术的实用化都有着极其重要的意义。

youdao