Asymmetries in liquid crystals gave scientists the tools to manipulate them, and now LCD screens are cheap and ubiquitous.

液态晶体的不对称性给了科学家们操纵它们的工具，现在LCD屏既便宜又常见。

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This article demonstrated the concept with many simple text editing one-liners using three of the most ubiquitous of editing tools: cat, Ed, and sed.

本文使用三个普遍存在的编辑工具，通过许多简单文本编辑单命令行程序阐述了这一概念：cat、ed和sed。

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On the non-endangered cubicle list, professionals from around the globe selected tablets (55 percent), cloud storage (54 percent), flexible working hours and smartphones (which tied at 52 percent) as office tools that are becoming more ubiquitous.

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This means that all the tools of testimony are now both mobile and ubiquitous.

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Moreover, while Microsoft's Vista operating system has received mediocre reviews, the Redmond, Washington-based software giant offers a host of tools, from e-mail software to its ubiquitous Office productivity suite, that will make it impossible to break Windows' lock on big businesses anytime soon.

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