The data recovery of hard disk software failure can be solved by the following ways, the recovery of main boot partition, partition table, DBR, zero track and the file deleted by mistakes.

硬盘软故障的数据恢复主要可以从以下几个方面入手：主引导区恢复、分区表恢复、DBR修复零磁道损坏的修复以及文件误删除的数据恢复。

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Dual tracking is provided, enabling positive and negative voltages and currents to track from zero simultaneously when varied, providing positive and negative outputs with the same absolute value.

双提供跟踪，使积极和消极的电压和电流跟踪时，从零同时不同，提供积极和消极的产出相同的绝对价值。

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An adaptive zero-phase tracking control algorithm is developed, and with which the servo system is able to track accurately a given non-circular high order special curves.

提出了零相位跟踪控制算法，使控制系统对给定非国特殊曲线具有很高的跟踪精度，从而保证了非圆轴类表面磨削加工精度。

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Patented Track Zero to hide extra tracks of music, liner notes on CDs and DVDs.

FORBES: Proving their net worth

The one decent track, the instrumental Zero Zero is restricted to 1 min 43 seconds when it surely should have been allowed to expand into a sprawling epic.

BBC: By the BBC's Chris Charles

We're now on track to go from zero -- zero commercial-scale biofuel refineries to 19 by the year 2012, and from no commercial-scale power plants operating carbon capture to five by the year 2015.

WHITEHOUSE: Meeting with Governors on Energy Policy