From end to end, the Milky Way's starry disk, observable with the naked eye and through optical telescopes, spans 120,000 light-years.

从一端到另一端，银河系布满星星的圆盘横跨12万光年，可以用肉眼和光学望远镜观察到。

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With it you can back up your disk to network locations, optical and removable media, and other hard drives.

有了它，你可以备份你的磁盘到网络、光学和可移动媒介上，或者是其他硬盘驱动器上。

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From end to end, the Milky Way's starry disk, observable with the naked eye and through optical telescopes, spans 120, 000 light-years.

它是一个布满星星的圆盘，从一端到另一端跨越了120,000光年。你可以用肉眼，也可以通过光学望远镜观察银河系。

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Consumer devices use common digital storage technology such as flash memory, hard disk drives or optical discs.

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There were particularly severe issues for companies making disk drives and optical networking components, but the impact was widespread.

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The team is already thinking of applications for metamaterials as read-heads for future generations of hard-disk drives or optical modulators for communications.

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