A method of representing data in magnetizable surface storage; for example,"modified frequency modulation".

在磁表面存储技术中一种表示数据的法，调频制。

A defect in the magnetizable surface coating (for example,on magnetic disc) consisting of a raised or thick area.

在磁性表层上(磁盘上)的缺陷,包括隆起的区域或厚的区域。