Here's why this could happen: the metadata update would erase any reference to the original data block(s), but would point to data block(s) on disk that were never filled with data.
出现这种情况的原因如下：元数据更新删除了对原先数据块的任何引用，却指向磁盘上没有填充过数据的数据块。
Renewing work file with it's mirroring in hard disk and renewing its standard data reference rapidly if the encrypted mirroring in hard disk was not demolished.
若硬盘上的加密备份文件未被破坏，以该文件快速恢复被破坏的工作文件，并更新标准参照数据。
The study can be for reference in designing the products of hand tractor attached driving disk plow.
研究结果可供手扶拖拉机配套驱动式圆盘犁产品设计时参考。
It can avoid reading the same reference instance and records in the same data block repeatedly. Meanwhile it can convert random reading disk into doing by table.
使用该算法避免了对同一引用实例或是位于同一数据块上不同记录的重复读取，并将对磁盘的随机读取方式转变为按列表预取的读取方式。
The study result can be for reference in designing driven disk plow and the type chart.
该研究结果可供驱动式圆盘犁产品设计及型谱制定时参考。
It is also believed that the proposed SLRU-K-EA algorithm in the paper is a good reference to other disk file caching systems.
另外相信本文提出的SLRU- K - EA缓存替换算法对于其它的磁盘文件缓存系统也有良好的借鉴意义。
Pt-disk twin working electrode and related reference capillary electrode and vertical cell were designed and used for fast cyclic voltammetric(CV) measurements.
报道一种双铂盘工作电极、相应的毛细管参比电极和竖直式电化学池设计并用于快速循环伏安测量。
This is because the reference is not a project reference, but is for the assembly on disk instead.
这是因为参考不是专案参考，只是针对磁碟上之组件的参考。
According to the principle and structure of the disk-type electrode, a new corresponding heat source model was derived using the traditional volume heat source model for reference.
针对非熔化盘式电极原理与结构特点，借鉴传统体积热源模型，推导了相应的热流分布模式。
The study result in the paper can be for reference in designing the products of Driving disk-plow.
文中研究结果可供驱动式圆盘犁产品设计时参考。
The disk can be carried about and used to emergence or usual treatment reference;
存储盘可以随身携带，可应用于紧急状态或常规医疗参考。
The disk can be carried about and used to emergence or usual treatment reference;
存储盘可以随身携带，可应用于紧急状态或常规医疗参考。
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