Normally, assured destruction means degaussing magnetic media or shredding optical disks.

在一般情况下，确保资料销毁就是采取消磁或切碎光盘的方法。

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One of the major trends in secondary storage has been toward massive capacities using magnetic and optical media.

其中一个主要的趋势，在二级存储已朝着大规模能力用磁性和光学媒体。

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The gold and silver nanoparticles have the excellent optical, electrical, magnetic and structural properties.

纳米金和银粒子具有优异的光学、电学、磁学和结构特性。

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Most usefully, the ability to make stuff with atomic precision will allow scientists to produce materials with improved, or new, optical, magnetic, thermal or electrical properties.

ECONOMIST: Small wonders

Known for its leadership in the optical, magnetic and flash storage and related accessories markets, the company provides reliable, unique technologies and products that are highly sought after and broadly distributed worldwide.

ENGADGET: Verbatim's USB 3.0 Store 'n' Go external drives play nice with magnets, your data

Such manufacturability implies that repeated fabrication of artefacts is possible to produce electronic, optical, magnetic or other properties with a high and highly reproducible yield within a tight tolerance of a pre-specified performance.

FORBES: Are There Physical Limits to Nanotechnology?